claim: "apprehension rates at the southern border have plummeted since the 1980s, and apprehensions of mexicans specifically have reached their lowest point in nearly half a century."
author: john conyers, jr.
evidence_1: the history of latino migration to the u.s. has complex origins rooted in the  nation's ... only reopened the southern border to mexican labor, but also more  significantly, ... persons apprehended—nearly 5 million—was roughly equivalent  to the total ... almost exactly a half-century after the end of the mexican war, the  island of ...
evidence_2: apr 23, 2012 ... even if it doesn't, it has already secured a place in the record books. ... just over  half (51%) of all current mexican immigrants are unauthorized, and some ... of  mexicans trying to cross the border illegally have plummeted in recent ... of all  unauthorized immigrants are now at their lowest level since 1971.
evidence_3: we focus on mexican migrants since mexican nationals account for the vast  majority of ... then, the chapter describes the contemporary border crossing  process for ... reconciling the rates of apprehensions by nationality and gender  with the estimates .... almost half of adult unauthorized immigrants have not  completed high ...
evidence_4: dec 9, 2010 ... mpi's jeanne batalova and aaron terrazas have assembled the ... reaching a  record low of 4.7 percent in 1970 (9.6 million individuals). ... mexican-born  immigrants accounted for 29.8 percent of all foreign ..... or, if apprehended, with  an immigration judge as part of a removal hearing (defensive request).
evidence_5: jul 5, 2011 ... better lives for mexicans cut allure of going north ... to the united states for the  first time had fallen to its lowest level since at least the 1950s. ... deportations  have reached record highs as total border apprehensions and ... up smuggling  prices from around $700 in the late 1980s to nearly $2,000 a decade ...