[ed. note: see updates from 2/24 and 2/25 at bottom of post] ABC reports that President Obama is reading ten letters a day from all kinds of people all across the country, "to help him get outside of the bubble," says press secretary Robert Gibbs. Each day he is handed a purple envelope containing the day's selection of letters. Sometimes he'll make copies of a letter to distribute to staff; sometimes he responds with a hand-written note of his own. Obama reads letters from Americans struggling to keep their homes or looking for work in...