An new international alliance of airlines has gained tentative approval from the U.S. Department of Transportation. The alliance, dubbed "Oneworld Airline," would include partners British Airways (BAIRY), Iberia Airlines, Finnair, Royal Jordanian Airlines and American Airlines (AMR).

Final approval by remains contingent upon certain conditions, including the requirement that the alliance relinquish a percentage of its highly valued takeoff and landing slots at London's Heathrow Airport. Members of the alliance have also offered the possibility of sharing transatlantic routes with competitors in an effort to quell fears of unfair competition which are being expressed from within the European Union.

Continental Airlines (NYSE: CAL) just got the relief it needs to compete. Despite resistance from the Department of Justice (which can only recommend), the Department of Transportation has granted the airline immunity from antitrust laws. This clears the way for Continental to work with United Airlines (NASDAQ: UAUA) -- and other carriers -- on international routes. Now, the airline can join Star Alliance, which already has antitrust immunity.

At the same time, DOT approved a joint venture among Continental, United, Lufthansa (OTC: DLAKY) and Air Canada. This new relationship would involve trans-Atlantic routes.

Continental Airlines (NYSE: CAL) is seeking immunity from antitrust laws to work more closely with United Airlines (NASDAQ: UAUA) and others on international routes. And, since airlines operate in a state of seemingly perpetual turmoil, what's the harm? According to the Justice Department: plenty.

The airline sought broad immunity as part of an effort to join Star Alliance, which includes US Airways, Lufthansa (OTC: DLAKY), and Air Canada -- along with United. Continental believes that it needs to join Star Alliance in order to remain competitive, especially with airlines that have this type of immunity already.

How can exports not rebound? Last year ended on a sour note after posting record results, and 2009 is by all accounts likely to be ugly. The tourism and travel industry is expected to shed more than 200,000 jobs this year. Fortunately, there's a light at the end of the tunnel. The U.S. Department of Commerce expects international visits to the United States to come back in 2010 – after its first forecasted year of decline (i.e., 2009) since 2003.

This year, international travel to the United States is expected to fall 8%. The following year, however, U.S. travel exports are expected to gain 5%, with 5% annual increases through the end of 2013. We'll come out ahead in all this, but it's going to take some time.

Will the influx of foreign visitors over the next four years be enough to turn the travel industry in the United States around? It's too soon to tell right now, and much will depend on the contributions made by domestic routes. Needless to say, even this glimmer of hope must be welcome to investors committed to the airline and hotel sectors.

Twelve years ago the United States put the trucking provision of the North American Free Trade Agreement, or NAFTA, on hold.

In February of this year Transportation Secretary Mary Peters announced the U.S. will grant a maximum of 1,000 Mexican trucks access to U.S. highways for up to three years under a new pilot program. At the moment, Mexican trucking companies are allowed to transport goods within a 25-mile buffer zone from its borders into the United States. American trucks are currently not allowed into Mexico.

In the past three months there has been a great debate in Washington about what this trucking provision should allow and how much of an impact it would have on America's truck drivers.