The New York Times has a report on the increase in corruption cases within the US Border Patrol. 

From the NY Times:

The pattern has become familiar: Customs officers wave in vehicles filled with illegal immigrants, drugs or other contraband. A Border Patrol agent acts as a scout for smugglers. Trusted officers fall prey to temptation and begin taking bribes.

Increased corruption is linked, in part, to tougher enforcement, driving smugglers to recruit federal employees as accomplices. It has grown so worrisome that job applicants will soon be subject to lie detector tests to ensure that they are not already working for smuggling organizations. In addition, homeland security officials have reconstituted an internal affairs unit at Customs and Border Protection, one of the largest federal law enforcement agencies, overseeing both border agents and customs officers.

The article mentions that there are about 200 open cases regarding corruption within the organization.

Smugglers are using attractive women to begin the process of compromising border agents. 

The smugglers use any ruse available to lure border workers but seem to favor deploying attractive women as bait. They flirt and charm and beg the officers, often middle-aged men, to “just this once” let an unauthorized relative or friend through. And then another and another.