Families of terrorist attack victims sue Facebook and Twitter

The families of victims of terror attacks in Paris, Brussels and Israel are blaming social media companies including Facebook and Twitter for facilitating communications among terrorists.

Twitter says it has suspended hundreds of thousands of user accounts in the past 18 months for threatening or promoting acts of terrorism. But that isn't enough, say lawyers for the families of terror victims, including a brother and sister killed in last year's bomb attacks in Brussels and an American college student slaughtered in Paris.