http://gma.yahoo.com/possible-bomb-sent-arizona-sheriff-joe-arpaios-office-143831499--abc-news-topstories.html

A suspicious package addressed to controversial Arizona Sheriff Joe Arpaio contained a bomb that was powerful enough to maim or even kill him, his office said today.

"Had someone opened that package, it would have caused a major explosion and caused serious physical injuries, burns and maybe death," Maricopa County Sheriff's Office spokesman Jerry Sheridan said at a press conference. "That was a very serious threat, it was labeled to come here to this building and be opened by Sheriff Arpaio."

"Packages do wind up on the sheriff's desk," said Sheridan.

The mail bomb was discovered Thursday by a Flagstaff postal worker who noticed what they thought was gunpowder residue coming from outside the package. The Flagstaff police department bomb squad X-rayed the package, noticing what appeared to be an explosive device inside.

"There were wires and a container in the device," said Sheridan.

The device was disarmed when the police department bomb squad blasted it apart with a water cannon.