9/11 families upset over ground zero museum delays

Visitors to the National September 11 Memorial walk around the twin pools, Tuesday, Dec. 20, 2011 in New York. The September 11 Museum is top right. (AP Photo/Mark Lennihan)

May 18, 2012 7:24:42 AM PDT
They were promised a place to mourn their loved ones, display their photographs and educate their children and the children of strangers about exactly what was lost on 9/11. But today, family members of those killed have no completion date for the museum that is to be built alongside the Sept. 11 memorial at ground zero - and many are upset.