WASHINGTON (Reuters) - Americans are deeply pessimistic about the future as economic concerns rise and White House talks on raising the U.S. debt limit sputter, according to a Reuters/Ipsos poll released on Wednesday. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=dkIiXOFz0ps:d-0M0n--XL4:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=dkIiXOFz0ps:d-0M0n--XL4:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/dkIiXOFz0ps)