The theory is that predators ... are looking for places where they can have quick and easy access to children.

Unfortunately, many times the church is that place that provides that quick and easy access to children. This imposes a six-month period of time in which you're going to get to know this person better.

At a parents' night out, a teenage babysitter at church was not being watched. He took an 8-year-old boy outside and fondled him.

You want to designate a spokesperson. You want to plan in advance who's going to be the one to speak to the media.

With today's technology, a new refinery could be really clean - far cleaner than today's refineries - in theory.

Earlier research has shown that poor blood flow can damage these parts of the brain. So one theory is that exercise may prevent damage and might even help repair these areas by increasing blood flow.