Nothing says "Close Jones Beach Down" like 100 unexploded fireworks washing ashore. While Nassau County's arson and bomb squad didn't believe the wet fireworks would pose immediate harm, authorities were concerned about what would happen when they dried out. Police suspect fireworks may have been backups for the company that produces the Jones Beach fireworks show. The beach was closed at 12:30 p.m. and Newsday reports the entire park was shut down a few hours......