Go to the Pennsylvania State Police website and you can find a link to Megan's Law website -- a list of convicted sex crime offenders. The list includes photographs of the criminal, his or her current address and the crime the person was convicted of.

Those on the list must register for 15 years up to the rest of their lives for offenses ranging from luring a child to rape.

When an offender relocates, the victim, neighbors, county and others are informed.

The idea behind the Megan's Law website is that the information will help to keep the offender from committing another sex crime.

But does it work?

The Carlisle Sentinel investigated and published a series of stories that may surprise you.

Reporter Joshua Vaughn appears on Tuesday's Smart Talk to discuss what he found.

Also, during the month of March, there have been at least eight terrorist attacks around the world that killed more than 220 people. Three have been in Pakistan, including the 37 killed by a suicide bomber Easter Sunday. But there have been others in Nigeria, Ivory Coast, Yemen and Turkey and of course Brussels Belgium where the number of dead is now up to 35.

It all seems too much to comprehend and makes one think if terrorism can ever be stopped. Our guest Tuesday is one of the nation's foremost experts on terrorism

Dr. Michael Kenney is associate professor of international affairs and program director of international affairs at the Graduate School of Public and International Affairs (GSPIA) at the University of Pittsburgh. Dr. Kenney is a former faculty member at Penn State Harrisburg.