Video: Death toll passes 140 in Joplin, Mo.
Two thousand volunteers comb through debris to help survivors salvage mementoes of their lives as other rescuers and families search for about 100 people who are still missing. NBC's Ron Allen reports. (Nightly News)
Source: http://pheedo.msnbc.msn.com/click.phdo?i=400f6f01ed528cd25d83fcabc1e5d04a