A looming Trump presidency, as we reported last week, has generated a surge in immigrants trying to cross the southern border of the United States. But, it is not just front-running Trump... Border Patrol agents are becoming frustrated, and the root cause of the frustration is that there is a catch and release program taking place. The time it is taking for agents to round up and process those who turn themselves in asking for asylum (just to release them into the US) is taking away from capturing the immigrants who aren't looking to turn themselves in to anyone - drug traffickers for example.
http://www.zerohedge.com/news/2016-05-31/not-just-trump-immigrants-coming-us-are-banking-catch-release-program