President Obama's "surge" of 30,000 troops to Afghanistan announced in late 2009 was meant to be temporary, and Wednesday night the president is expected to announce that they will return home by around the time voters head to the polls to determine whether he gets another term. In prime-time speech to the nation, Obama is expected to say about 5,000 troops will begin coming home this summer with an additional 5,000 troops by the end of this year, sources told CBS News. And about 20,000 more troops are expected to return to the United States by the end of 2012,...
