INQUIRER: The area around Independence Mall was tied in knots this morning after a man and a woman attempted to enter the William Green Federal Building about 11 a.m. with “prohibited items,” authorities said. The couple was detained and federal agents searched a car in an adjoining garage, where they discovered additional “prohibited items.” Broadcast reports said the couple had ammunition and a knife in their pockets and a shotgun stowed in their car. As a precaution, police evacuated the Federal Building, Philadelphia’s best-known tourist attractions and a daycare center. A garage adjoining the federal building also was evacuated. Traffic was diverted on 5th and 6th Streets between Market and Arch. DEVELOPING…