David FolkenflikFolkenflik is NPR's media correspondent.
Morning rush hour commuters pass by a CNBC crew in front of the New York Stock Exchange in September 2006. The channel has adopted a policy that prohibits guests from appearing on rival channels amid breaking news.
Flowers, candles and stuffed animals make up a makeshift memorial in Newtown, Conn., on Monday. Much of the initial news coverage of Friday's events was later found to be inaccurate.