Immigration Decreases, but Tensions Remain High

PHOENIX — The impact of steep declines in the number of migrants illegally crossing the border with Mexico in recent years has rippled across Arizona and other border states, with federal and local law enforcement seeing big drops in crime related to illegal immigration.       

http://www.nytimes.com/2012/03/11/us/illegal-migration-from-mexico-falls-but-local-fears-persist.html?_r=1&scp=2&sq=immigration&st=cse