PHOENIX - He's been at the center of the discussions and controversies surrounding illegal immigration enforcement in Arizona for quite a while.

On the day parts of Arizona's immigration law, SB 1070, went into effect, Maricopa County Sheriff Joe Arpaio is in the news for another reason: there's a price on his head - allegedly offered by a Mexican drug cartel.

The audio message in Spanish is... http://www.myfoxphoenix.com/dpp/news/immigration/mexican-drug-cartel-she...