NASHUA, N.H. (AP) - A woman's tearful plea to Democratic presidential candidate Barack Obama to end the Iraq war momentarily caught him off guard Friday at a New Hampshire town hall meeting. The Illinois senator vowed to end the unpopular conflict if elected, a position that later earned him thunderous applause during a 5,800-person rally in Boston. Obama fielded questions about health care, gun control and energy during a midday appearance before some 200 people at a Nashua senior center. The residents politely applauded, and then Jean Serino of Hudson told the candidate her nephew was heading to Iraq to...