Now Playing: 01-17-12 Marketplace

Wikipedia and other websites will shut down for 24 hours in protest of the Stop Online Piracy Act. After a cruise ship capsized off the Italian coast, shares and business have fallen. Senior business correspondent Bob Moon explains commercial banking versus investment banking. Economy 4.0's David Brancaccio talks about the impacts of a major catastrophe on the global financial system. And we take a look at how some manufacturing factories have changed since television personality Mr. Rogers visited them.