The government of Prime Minister Tony Blair faced down its opposition on Monday in a politically charged vote in the House of Commons on a plan to introduce mandatory national identification cards. The vote moved Britain closer to the use of such cards but did not make clear precisely when that would be. Despite a rebellion by about 20 members of Mr. Blair’s own Labor Party, the government won the vote, 310 to 279. A defeat would have been Mr. Blair’s fourth humiliation in Parliament since the general election last year — and since taking power in 1997 — raising doubts about his authority in his third term of office. Full Story