(The New York Times) – The Obama administration has deepened its rift with its Gulf allies over the ongoing conflict in Yemen, blocking a transfer of precision munitions to Saudi Arabia because of concerns about civilian casualties that administration officials attribute to poor targeting. Administration officials said on Tuesday that the White House had made the decision to block the sale by Raytheon of about 16,000 guided munitions kits, which upgrade so-called dumb bombs to smart bombs that can more accurately hit targets. The kits, if purchased over the life of the proposed contract, are valued around $350 million.