To maintain their cover, undercover detectives were posting and sharing abuse material on Childs Play. For over a year. Who would authorize this...once again,

To maintain their cover, undercover detectives were posting and sharing abuse material on Childs Play. For over a year. Who would authorize this...once again, it's a whole freakign year? I understand seizing a site and "seeing" who log in for a while but police actively posting child pron? Why not have undercover ATF agents kill people to prove their no undercover?