If you read the State Department's recently released Country Reports on Terrorism 2009 Western Hemisphere Overview something stands out immediately--outside Colombia there are few terrorist threats in the region. This is good news that deserves more attention. Even the section on Venezuela is pretty mild stuff, and it admits that Venezuela actually has worked with Colombia on counterterrorism.
And for all the talk about terrorists entering the U.S. through Mexico, we have the following:
No known international terrorist organizations had an operational presence in Mexico and no terrorist incidents targeting U.S. interests and personnel occurred on or originated from Mexican territory.
Alarmism is juicy. It grabs people's attention, makes for wonderful sound bytes and goes viral until people believe it. But in this case it is unwarranted and can lead to poor policy decisions.