(Reuters) - Reclusive Grammy-winning singer Lauryn Hill responded on Friday to charges of failing to file federal income tax returns, saying she had chosen to "defer" payments during a period of withdrawal from society to protect her family's safety. Hill, 37, who has not released an album since 2001 and has made only sporadic public appearances in the past six years, issued a lengthy statement on her tumblr website one day after being charged with failing to file taxes for three years. The U.S. ...