What inspires young men like Adam Lanza to commit their unspeakable crimes? Dr. Oz talks to Dr. Drew Pinsky and an FBI profiler reveal what science tells us about their minds. Plus, what we can do to prevent future tragedies.

Read Dr. Oz's blog about coping with post-traumatic stress disorder.

Could you imagine making 4.6 billion calls in a month?

That's how many robocalls Americans received in February this year. And when your phone is ringing endlessly with scammers asking about your car's warranty, a free cruise, or even a scary warning about your insurance coverage, it can definitely seem like all the calls are going to you. So what do you do when you get one of these fake calls and how do you protect your personal information and money from cons? Here are the important steps to take.

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