The Obama administration won’t provide Congress with a range of details about a recent announcement that cleared the way for doing business with Iran, including Iranian firms controlled by sanctioned military and terrorist groups, according to congressional sources and experts who spoke to THE WEEKLY STANDARD.

The new guidelines, which were issued by the Treasury Department on the Friday before Columbus Day, told foreign banks they could work with Iran in U.S. dollars, allowed foreign firms to do business with companies “controlled in whole or in part” by sanctioned Iranian entities, and loosened the responsibility of banks to avoid funding illegal transactions.