60 Minutes found that Lumber Liquidators' Chinese-made laminate flooring contains amounts of toxic formaldehyde that may not meet health and safety standards. Anderson Cooper reports. It took over 80 years, but a museum dedicated to African-American history and culture is finally taking shape on the National Mall in Washington. Scott Pelley reports. With over 50 percent of our nation lying underwater, huge discoveries await, says explorer Robert Ballard. Lara Logan reports.
