If there is one lesson for U.S. foreign policy from the past 10 years, it is surely that military intervention can seem simple but is in fact a complex affair with the potential for unintended consequences.

The situation in Syria is quite different from Libya.

Having your fiscal house in order and having a more manageable macro-economic future is going to be very useful in creating growth.

Street protests in Saudi Arabia might warm our hearts, but they could easily lead to $250 a barrel oil and a global recession.

I think that liberals need to grow up.

Politically Incorrect was the name of the show Bill Maher hosted in the 1990s. It's also an apt description of the man himself. Now host of - HBO's hit show Real Time, I find Maher to be one of the sharpest observers of American politics and life in general out there. It doesn't mean I always agree with him. I always find him funny, though.

The Berlin Wall wasn't the only barrier to fall after the collapse of the Soviet Union and the end of the Cold War. Traditional barriers to the flow of money, trade, people and ideas also fell.