JACKSONVILLE, Fla. -- The tragedy in Boston has many people thinking about crowd safety and spotting the warning signs. A local bomb expert says we shouldn't be paranoid, but we all need to be prepared.
"What they're doing is worrying Americans so that we surrender our freedoms in order for the concept of security," said Dale Carson, former FBI agent.
Carson says we can't live in fear following tragedies like the bombings at the Boston Marathon. But we can help make sure it doesn't happen again. He says if you attend open events -- like the marathon -- be aware of what's around you.
"If somebody drops something and it makes a clunk noise, well that's unusual. If you see something that's wrapped in paper and there seems to be an oily stain on it, that's unusual. Unless it's a ham sandwich that someone put down, but even then you have a responsibility and a duty to point it out."
Carson says it's also our duty to report suspicious people.
"Every one of these cases: Aurora, Newtown, somebody knew that somebody else wasn't right. And those people have a duty to come forward and say there's a crazy guy over here."
Carson says even if it turns out to be nothing, it's always better to be safe than sorry.
"Yes, you may feel kind of silly when it turns out to be a bag of sandwiches, but the question is not that whether you feel silly or not it is whether or not when it turns out to be a destructive device if you saved the lives of in this case 3 people."
For tips on how to spot a bomb, visit here