While there have been no credible threats made against targets here in the city, security measures have been ramped up at all major transit hubs. NY1's Roger Clark filed the following report.
New York City police officers were busy Wednesday morning at Jamaica Station in Queens checking commuters' bags.
Subway riders who spoke with NY1 said the extra police presence two days after the bombings in Boston was reassuring.
"I'm happy to see the police officers out here today, because as much as the country is doing to make us safe, a little more should be done," said one subway commuter.
"We have a lot of police here. I feel safe here. I'm not afraid to take public transportation," said another subway commuter.
"I do believe over here that they are trying to watch out and I did see they had more cops yesterday on the platform and upstairs also," said a third commuter.
But some heading to work did say they were a little more nervous than usual riding the rails in the wake of Monday's events.
"I'm concerned because you never know what's going to happen in today's world. It was so sad what happened, senseless, you just have to really be on your guard, and watch around you and your surroundings," said one straphanger.
"You just got to pray and hope you get to work and get home safely," said another straphanger.
"Always thinking about it, you know, we're always worried about it, especially commuting in New York," noted a third rail commuter.
While there was some trepidation among subway riders, most said they need to get to where they have to go, and going underground is the only way to do it.
"You've got to trust the security because if it's going to happen, it's going to happen. You've got to live each day, right?" said one commuter.
"You're always weary, but it's the same. I've got to get to work, you know so you just get on the train and do what you've got to do," said another commuter.
"You know you have to get on with life you just can't you know, stay inside the whole time."
One student who was on his way to school offered some advice, saying, "You have to keep your self-awareness up, because you can't let anything slip by you nowadays."
He added that one never knows when the unthinkable can happen, and you have to be prepared all the time and watch your back.