06 Apr 2003 11:24:23 GMT U.S.-led forces seize Iraqi ship, track second DUBAI, April 6 (Reuters) - U.S.-led forces have captured an Iraqi naval vessel and are tracking a second to prevent them from laying mines in the Gulf, a U.S. navy spokesman said on Sunday. The seizure of the ship may help dispel fears that shipping operations in the Gulf, which provides 40 percent of world crude exports, could come under attack. "The first vessel, the al Shorook, was located in the northern Gulf two days ago and boarded by coalition forces," said Lt Garrett Kasper of the U.S....