From The New York Post:
The agent, Chris Yves Dabel, discovered the device at the Terminal 2 security checkpoint and tried to determine if it was real, a source told The Post.
He told Port Authority cops that he “found the canister on the floor and thought it was a laser pointer.”
“They were playing around with it,” said one Kennedy Airport official.
The screener sprayed five other TSA agents around him, sending all six to Jamaica Hospital and halting security checks at Kennedy for at least 15 minutes, police saidReinforcements were called but the device was expended by then.