Pentagon’s 30,000-pound bunker-buster ‘superbomb’ ready for use 27 Jul 2012 The biggest conventional bomb ever developed is ready to wreak destruction upon the enemies of the US. Air Force Secretary Michael Donley said its record-breaking bunker-buster has become operational after years of testing. “If it needed to go today, we would be ready to do that,” said Donley. The Pentagon has spent $ 330 million to develop and deliver more than 20 of the precision-guided Massive Ordnance Penetrator (MOP) bunker-busters, which are designed to blast through up to 200 feet of concrete