NEW HAVEN, Conn. (WTNH) — Officials in Brussels have been on high alert. Doctor Vesna Markovic, Assistant Dean of Criminal Justice and National Security at the University of New Haven joined us on News 8 to speak on the attacks.

Last week, a man thought to have been involved in the Paris bombings was brought in. What happened in Brussels seemed to be no coincidence.

“It seems to be very likely if you look at what was going on prior, some of the people involved in the Paris attacks were from Brussels and so you have to think that there was a large network. When he escaped, and you have to remember the dragnet for the attackers, for that particular attacker, was very tight and he got out and got into Belgium and they were looking for him for quite some time. So, there has to be, from my perspective, a pretty large kind-of network operating in Belgium to be able to hide them for that period of time.”

Take me into the mind of a suicide bomber?

“Well there are many explanations for why people do it, sometimes they’re tricked, sometimes they’re willing participants, it just depends on which area. It’s really interesting to look at specifically ISIS because we have a lot of individuals who are very willing to fight for the cause.”

We are one world, how do we get organized as a world? Where do we begin?

“I think that would be a really difficult task. I think if we could come up with a very easy solution, it would have already been solved. We do have them. They’re operating in a lot of different countries now, they’re in Libya, Egypt, and here. And they don’t have to have people that they’ve necessarily recruited, as long as somebody is willing to kill for the cause, they don’t even necessarily need to be directly correlated.”

What about finance? People would say it takes a lot of money to put pockets of people all over the world. What would you say to that?

“In some cases, that isn’t true at all. If we look at a spectacular attack like September 11, that did take a lot of money. If you look at some of the commission reports, between $350,000 and $500,000, but London 7/7 attacks, for example, were just a few thousand pounds. A lot of it involves travel to another country, if they’re going to receive training, but just to put some of these bomb components together, it’s not really that expensive. Thankfully in the U.S., it’s more difficult to get these components. We did see in the Boston Bombings, they were able to make a bomb so it’s definitely possible, but having such a large-scale attack has been thwarted by a lot of policies that the U.S. has put in place.”

As an expert in this field, how do we fix this?

“Well, for me personally, when I think of these things, I focus more on we have to solve the root of the problem. You can’t necessarily defeat force by force. If you look at a lot of the other areas where terrorism has kind-of gone down, if you look at the IRA and some other groups, a lot of that was partially military, but based on political solution, so it might take a lot to defeat this enemy.”