ATLANTIC CITY, N.J. (AP) — Rowdy crowds waiting in line for a July Fourth pool party featuring Sean "Diddy" Combs forced the event to be shut down before the rap and fashion mogul had a chance to enter. Police shut down the party early Monday, forcing some 1,800 guests out of the Harrah's Resort Atlantic City nightclub known as The Pool. On his Twitter feed, Diddy wrote, "I just shut down Atlantic City! The party was so crazy I couldn't even get in! 10 thousand people showed up. ... I was ready to party!" Casino staff said that the actual...