This link provides an important batch of resources for researching terrorism trends in other countries. I find much of the information provided by the US government to be fear mongering.
I don’t pay too much attention to the US State Department Travel Warnings. I find that similar warnings from the governments of Australia and Great Britain to be far more accurate.
“Terrorism kills more people than sharks, but it still doesn’t kill many: your odds are 1 in 25 million worldwide (in the US, it’s even less likely). When you travel, it’s far more likely (1 in 5,862 in the US) that you’ll die in a plane crash than you will in an act of terrorism.”