Paranoia on the rise, experts say

If you think they're out to get you, you're not alone.

Paranoia, once assumed to afflict only schizophrenics, may be a lot more common than previously thought.

According to British psychologist Daniel Freeman, nearly one in four Londoners regularly have paranoid thoughts. Freeman is a paranoia expert at the Institute of Psychiatry at King's College and the author of a book on the subject.