Attorney General Janet Reno pledged today to “get to the bottom” of why it took the FBI six years to admit that its agents may have fired potentially flammable tear gas canisters on the final day of their standoff with the Branch Davidian cult near Waco, Texas.

“I have no reason at this point to believe the FBI is responsible for the deaths of those people,” Reno told her weekly news conference at the Justice Department. But she said she was “very, very frustrated” that six years after categorical denials by the FBI there were news reports about the possible use of flammable devices.