Dr. Carl Hart on addiction
Air Date: Sep 20, 2013 12:00 AM ET
Columbia neuroscientist Dr. Carl Hart is challenging conventional ideas about drug addiction. Crack has been branded as one of America's most addictive and destructive drugs since the 1980s, but Dr. Hart says that its effects have been greatly exaggerated
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Three victims of Monday's attack after an Ariana Grande concert in Manchester have been named, and the others are likely to be young people who went out for a night of music and fun with friends and family
Security experts discuss whether minimizing the damage of attacks like the one in Manchester should be the approach rather than attempting to prevent them outright.