Scoop: U.S. blockade has cost Iran $4.8 billion, Pentagon says

The Defense Department estimates Iran has been denied nearly $5 billion in oil revenue because of the U.S. blockade in the Gulf of Oman, causing unprecedented pressure on Tehran's government.Why it matters: The blockade is President Trump's most significant leverage tool to negotiate ending the war with Iran, and the Pentagon wants to emphasize its impact as peace talks stop and start.Zoom in: Since the blockade began April 13, the U.S. military has redirected more than 40 vessels that have trie...