“Examining the Terrorist Threat from America’s Southern Border is republished with permission of Stratfor.”

By Scott Stewart

On July 21, Texas Gov. Rick Perry announced he was deploying 1,000 members of the Texas National Guard to the Mexican border to help strengthen border security. The move is the latest in a chain of events involving the emigration of Central Americans that has become heavily publicized — and politicized.

Clearly, illegal immigration flows are shifting from Arizona and California to Texas. In fiscal year 2013, the Rio Grande Valley Border Patrol sector surpassed Tucson as the leading sector for the number of apprehensions (154,453 in Rio Grande Valley versus 120,939 for Tucson). Also, between fiscal 2011 and 2013 (all Border Patrol data is recorded by fiscal year), the number of “other than Mexicans” — mostly Central Americans — apprehended in the Rio Grande Valley sector increased by more than 360 percent, from 20,890 to 96,829. (By comparison, the Tucson sector apprehended 19,847 “other than Mexicans” in 2013. Significantly, minors constituted a large percentage of the “other than Mexicans” apprehended in the Rio Grande Valley in 2013: 21,553 (compared to 9,070 in Tucson sector). However, the majority (84 percent) of those labeled Unaccompanied Alien Children by the Border Patrol are teenage minors and not younger children. Read the rest of this entry »