With the arrests of 5 men attempting to blow up a Northeast Ohio bridge, domestic terrorism is now firmly back in the public's consciousness .

Dr. Andrew Thomas, an assistant professor of marketing at the University of Akron, and an expert on transportation security says today's arrests are proof that U.S. citizens should always be aware of domestic terrorists.

"We need to remember that this is part of the human condition and that this is something the United States is not immune from," Thomas said. "This will always be with us."

The five self-described anarchists allegedly targeted the Route 82 bridge over the Cuyahoga Valley National Park that connects Sagamore Hills and Brecksville.

  Dr. Andrew Thomas by Aaron Coleman

Thomas says people will always disagree with the Government at some level, but says to keep an ear out for talk of violence or harm.

"When you hear things like violence, destruction of property, or anything of that nature, then you should be concerned."

"In a free and open society, you'll have people that will take things too far, and it appears as though this is the case here," Thomas explained.

The men were arrested Monday night after the FBI foiled their plans.