Libertarians are often called cynics for their negative view of government, but this criticism is exactly backwards. To believe that society's problems can only be solved by government force is by far the more cynical position.
The 67th anniversary of the Hiroshima bombing should remind us that many have died under American hegemony. While the U.S. is better than her predecessors, and almost certainly better than the alternative of Chinese hegemony, there is something inherently immoral about having a global superpower. People in all countries should work for multilateralism.
Opponents of Ron Paul like to target his sanity; the phrase "Ron Paul is crazy" has become a political trump card. I'm no fervent Ron Paul supporter, but this is NOT a reasonable position to take.