Is there really a price on Joe Arpaio's head?

[PLC1]

Could be.

Mexican Drug Cartel Allegedly Puts a Price on Arizona Sheriff's Head

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.

Sounds pretty extreme, but then, the drug runners have cut off heads before.

What do you think? What should the response be?