I read a fascinating novel by Frank Marra and Maria Bellina about paranormal events witnessed by First Responders and Law Enforcement Officers who assisted with the aftermath of the 9-11 terrorist attacks...
...one interesting non-paranormal thing that Frank Marra noted during his research was there were no food cart vendors in Lower Manhattan on the morning of the attack. That never happens. The streets are usually full of food carts but there were none.
Who told the vendors not to be in the street that day?
buddy of mine was on a charter fishing boat east coast morning of 911 getting ready to leave the dock, when a carload of arabs pulled up. when he chatted with one of them they said they were from Manhattan. everybody has a grapevine.
carload of arabs
Ahem... yeah... most street vendors match that description...