Cops Raise Taser Safety Claims

Several cops got on their knees on a rubber gym mat. Kneeling in a line, they linked arms, interlaced hands, and looked up. All they knew of what comes next is this: It's going to smart.

This was called the "daisy chain." It was part of the Metro Police Taser training program, the alternative to hitting a single individual with thousands of volts from the weapon. It was the option officer Lisa Peterson chose, a decision she regrets.