Shock, anger and mourning in Spain after 2nd major train crash this year

There is shock, anger and mourning in Spain after the second fatal train crash this year. At least 68 people have died in what is now the deadliest collision there in more than a decade. William Brangham reports.

There is shock, anger and mourning in Spain after the second fatal train crash this year. At least 68 people have died in what is now the deadliest collision there in more than a decade. William Brangham reports.