The special security team must have picked up on him as he entered the station and walked up the stairs, Jones says. Little did he know a nuclear stress test he had at a hospital earlier in the day had set off silent alarms and sent security scurrying.

The TSA team passed by him several times before ending up on his train car. Finally, he got a clue when an agent questioned the man right next to him and asked, ‘Sir, do you have an explanation as to why I am getting a high isotope reading on your bag?’”

“The fellow’s jaw dropped,” Jones said.

Once the agent said the word “isotope,” Jones says he realized he was the one they were looking for. He raised his hand to say he had a nuclear stress test.