Barack Obama may not yet have brought about as much change as promised, but he himself has certainly changed.

With the COP15 climate conference looming, ambassadors are becoming lobbyists. They should tread very carefully.

As the US finally establishes a national tourism authority, clever cross-marketing to foreign visitors will benefit the states less travelled.

Tourists from some countries find it easier to enter the US than others.

The Iraq war has been big business for US military contractors (AKA mercenaries).

To round off our series on the foreign media's coverage of the US presidential campaigns, we talk to Armando Guzman of Mexico's TV Azteca about crossed wires and counter immigration.