U.S. drops biggest non-nuclear bomb ever used in combat

The U.S. has dropped the largest conventional weapon ever used in combat to hit an underground ISIS complex in Afghanistan, Pentagon officials say.
The nearly 22,000-pound “MOAB” — standing for Massive Ordnance Air Blast, or as it’s also known, the “Mother of All Bombs” — was designed during the Iraq War but had never before been used on the battlefield.
The U.S. has used the bomb’s predecessor, a smaller but still massive weapon known as the &ldqu