WRENTHAM — Just a week after the nation celebrated its birthday, residents of the Garden Lane public housing complex are being told they can no longer display their patriotism by hanging U.S. flags outside their homes. Tenants of the complex, operated near the center of town by the Wrentham Housing Authority, were notified of the new policy through a letter taped to their doors sometime Wednesday afternoon. The letter, which is unsigned but is on housing authority letterhead, says the move was made after a tenant repeatedly complained to the state Department of Housing and Community Development over the July...