"More than 200 mine-like objects have been swept from the main lane of the strait. U.S. officials say only 11 of them were actual mines and just a few were properly deployed."
"In recent weeks, traffic through the southern channel has grown to 20 to 30 tankers every night, carrying an average of 9 to 10 million barrels, per U.S. officials. That's roughly half the pre-war volume."