A deadly incident in Afghanistan earlier today, as 30 troops (22 of whom were Navy SEALS) are killed in a helicopter crash. The Taliban is said to have shot the copter down. From the NYT:

The helicopter, on a night-raid mission in the Tangi Valley of Wardak Province, to the west of Kabul, was most likely brought down by a rocket-propelled grenade, one coalition official said.

The Taliban claimed responsibility for the attack, and they could hardly have found a more valuable target: American officials said that 22 of the dead were Navy Seal commandos, including members of Seal Team 6. Other commandos from that team conducted the raid in Abbottabad, Pakistan, that killed Bin Laden in May. The officials said that those who were killed Saturday were not involved in the Pakistan mission.

CNN calls it "the single deadliest loss for U.S. troops since the Afghan war began in late 2001."