Russian business runs on different rules. News Corp.'s (NYSE: NWS) Rupert Murdoch, who has been doing business in China for years, is nervous about his Russian enterprises. This morning, the FBI announced it had rounded up a ring of data thieves, many from former Soviet Union countries. And then there's the little matter of BP-TNK, a joint venture between BP (NYSE: BP) and a Russian company, whose Russian shareholders are booting out its Western executives so they can take over the operation.

Here's what Silicon Alley insider reports Murdoch had to say about doing business in Russia: "We have great growing business there but just -- this is purely me, I'm sorry, I'm -- the more I read about investments in Russia, the less I like the feel of it. The more successful we'd be, the more vulnerable we'd be to have it stolen from us, so there we sell now."

In case you missed it, The Detroit Free Press reports that an international ring of data thieves used wardriving -- the practice of stealing data from unprotected Wi-Fi networks -- to take 40 million identities, use the information to print fake ATM cards, and steal millions of dollars. The corporate victims include customers of TJX (NYSE: TJX), Barnes & Noble (NYSE: BKS), and OfficeMax (NYSE: OMX). Five of the 11 defendants are from former Soviet Union countries -- "one is from Estonia, three are from Ukraine, and one is from Belarus."

MAJOR PAPERS:

• Barnes & Noble Inc (NYSE: BKS) is considering a bid for rival bookseller Borders Group Inc (NYSE: BGP), the Wall Street Journal reported, a move which would allow Barnes & Noble to improve profits and reduce costs. Antitrust issues could prevent a deal.
• The Wall Street Journal also reported that Carl Icahn's effort to remove Yahoo! Inc's (NASDAQ: YHOO) board has picked up new supporters, including T. Boone Pickens, who acquired a 0.75% stake. Some Yahoo shareholders believe it is still too early to predict whether Icahn will be able to carry July 3's shareholder vote.
• A Financial Times investigation discovered that Moody's Corporation (NYSE: MCO) incorrectly awarded top ratings to billions of dollars to debt products due to an error in its computer models. Moody's said it is in the process of "conducting a thorough review" of the rating of the constant proportion debt obligations, which should have been up to four notches lower.

OTHER PAPERS:

• According to the people briefed on the matter, the New York Times reported that the buyout of Penn National Gaming Inc (NASDAQ: PENN) by Fortress Investment Group (FIG) and Centerbridge Parters may involve revised terms. The sources said the negotiations may "delay or even imperil" the deal.

MOST NOTEWORTHY: Barnes Group Inc (B), MFA Mortgage Investments (MFA), Alberto-Culver Co (ACV), ZymoGenetics, Inc (ZGEN) and Genelabs Technologies (GNLB) were today's noteworthy initiations:

• CIBC expects Barnes Group (NYSE: B) to benefit from the sustained upswing in the aerospace cycle and robust global execution, starting shares of with a Sector Outperformer rating.

• JMP Securities is positive on MFA Mortgage Investments' (NYSE: MFA) organic yield improvement potential of its short duration portfolio and the company's modest leverage, starting shares with a Market Outperform rating.

• William Blair started shares of Alberto-Culver Co (NYSE: ACV) with an Outperform rating, believing the company is one of the better long-term growth opportunities among mid-cap stocks in consumer products.

• ZymoGenetics Inc (NASDAQ: ZGEN) was started with a Neutral rating at Oppenheimer, since the firm doesn't expect any important new clinical data until Q308.

• Genelabs Technologies Inc (NASDAQ: GNLB) was started with a Buy at Oppenheimer, saying the company has a portfolio of early-stage programs in the treatment of Hep-C that have the potential to be best-in-class...

OTHER INITIATIONS:

• Cowen started Maxygen, Inc (NASDAQ: MAXY) with an Outperform.

• Merrill initiated Atheros Communications, Inc (NASDAQ: ATHR) with a Buy rating.

• Jefferies initiated shares of Alcon, Inc (NYSE: ACL) and Chemed Corp (NYSE: CHE) with Buy ratings.

• Rodman initiated Amgen, Inc (NASDAQ: AMGN) with a Market Perform rating.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Today's noteworthy upgrades include Papa John's Int'l, Inc (PZZA), ExpressJet Holdings, Inc (XJT), Nvidia Corp (NVDA),Georgia Gulf Corp (GGC) and MasterCard (MA):

• Following Q1 results, Oppenheimer upgraded shares of Papa John's Int'l, Inc (NASDAQ: PZZA) to Buy from Neutral, citing better-than-expected revenue growth, improved margins and acquisitions.

• Soleil upgraded shares of ExpressJet Holdings (NYSE: XJT) to Hold from Sell with a $7 target due to the likely absence of any real news until at least August.

• Deutsche Bank assumed shares of Nvidia (NASDAQ: NVDA) with a Buy, up from Hold, as the firm believes Vista will accelerate NVDA's growth rates making their 2008 estimates conservative.

• Citigroup upgraded shares of Georgia Gulf Corp (NYSE: GGC) to Buy from Sell based on an improved near-term outlook.

• MasterCard (NYSE: MA) was upgraded to Hold from Sell at Stifel based on the lenders impressive Q1 results and pricing power...

OTHER UPGRADES:

• Baird upgraded Barnes Group Inc (NYSE: B) to Outperform from Neutral.

• Pacific Ethanol Inc (NASDAQ: PEIX) was raised to Hold from Sell at Hambrecht.

• LCA-Vision Inc (NASDAQ: LCAV) was upgraded to Buy from Neutral at Oppenheimer.

• Bernstein raised Barr Pharmaceuticals, Inc (NYSE: BRL) to Outperform from Market Perform.

• Morgan Stanley upgraded Nektar Therapeutics (NASDAQ: NKTR) to Equal Weight from Underweight.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

MOST NOTEWORTHY: Novartis AG (NVS), Barnes & Noble, Inc (BKS), Altria Group (MO) and Advanced Micro Devices (AMD) were some of today's more notable upgrades:

• Credit Suisse upgraded Novartis AG (NYSE: NVS) to Neutral from Underperform on valuation and the approval of its drug Tekturna.

• Merrill Lynch upgraded shares of Barnes & Noble, Inc (NYSE: BKS) to Neutral from Sell on valuation.

• Deutsche Bank believes the recent weakness in Altria Group (NYSE: MO) presents a buying opportunity given the potential to unlock value, upgrading shares to Buy from Hold.

• JMP Securities upgraded shares of Advanced Micro Devices Inc (NYSE: AMD) to Market Outperform from Market Perform following checks that indicate the company's next-generation "Barcelona" quad-core server chip and next-generation low-power mobile PC processor chip is exhibiting excellent power, performance, scalability, and price/performance characteristics at key OEM customers.

OTHER UPGRADES:

• ThinkEquity upgraded Microchip Technology Inc (NASDAQ: MCHP) to Accumulate from Source of Funds following the company's improved guidance.

• Morgan Stanley upgraded Eni SpA (NYSE: E) to Equal-Weight from Underweight as they believe management made it clear that the dividend is sustainable and a large-scale acquisition is not forthcoming.

• JP Morgan upgraded Deutsche Telekom AG (NYSE: DT) to Neutral from Underweight citing management's new focus on customer service and expectation's for modest growth for the upgrade.

• AG Edwards upgraded Anheuser-Busch Companies Inc (NYSE: BUD) to Buy from Hold.

• Morgan Joseph upgraded Boyd Gaming Corp (NYSE: BYD) to Buy from Hold based on key markets the company operating in and its diversification.

• Bernstein upgraded Cablevision Systems Corp (NYSE: CVC) upgraded to Outperform from Market Perform.

Analyst summaries provided by TheFlyOnTheWall.com (subscription required).

Long-time writer for Barron's, Jonathan Laing, takes an deep-dive on the shares of Barnes & Noble, Inc. (NYSE:BKS).

Books are dead, right? It's all about the Internet?

Maybe. But Laing thinks BN is an ideal candidate for a buyout.

Despite a nice rally in stocks, Barnes & Noble has been a laggard. Other problems: analysts are lukewarm on the stock; Amazon.com is a threat; there is slowing consumer spending; and there is also stock option backdating concerns.

However, smart money is moving into the stock, such as from the hedge fund Pershing Square. It holds about 8% of the Barnes & Noble.

Pershing's superstar investor, Bill Ackman, likes Barnes & Noble because: the aging population bodes well for books; BN has a massive superstore footprint, which provides a Starbucks-like social experience; there is little inventory risk (because books can be returned to the publisher); and the brand is very powerful.

Also, Barnes & Noble has taken steps to restructure the cost structure and boost cash flows, offering more high-margin products (such as wrapping paper), and providing self-publishing services.

And, with no debt -- as well as the strong cash flows -- Barnes & Noble would certainly make for an attractive leverage buyout from a private equity group.

Actually, there may not be any need for private equity financing. Given the company's balance sheet and the founding family's equity stake, the deal could be done completely with debt financing.

Tom Taulli is the author of various books, including the Complete M&A Handbook and operates InvestorOffering.com.