WASHINGTON — In the marketplace of American faith, Catholicism is the big loser. No other religion in the United States has lost more members to other faiths, or to no faith at all, than Catholicism, according to the new survey released by the Pew Forum on Religion and Public Life. The survey, conducted in 2007, found that 31 percent of Americans were raised Catholic, but less than 25 per cent of them still identify as Catholic. Roughly 10 percent of all Americans have strayed from Catholic roots, the study reported. Despite the loss, the survey shows that Catholics still represent...