Rene Preval, taking power as Haiti’s president for the second time in a decade, urged his divided population to unite for peace, warning “if we don’t talk, then we will only fight.” Thousands of Haitians thronged the national palace to see Preval sworn in Sunday. The soft-spoken 63-year-old replaces a U.S.-backed interim government installed after former President Jean-Bertrand Aristide fled into exile amid a bloody revolt in February 2004. Full Story