Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
CNN's Richard Quest and Ali Velshi spar over who's to blame for the Dow's 600 point drop.
RELATED STORY: Dow plunges after S&P downgrade
CNN's Richard Quest explains how the world views the U.S. debt crisis and what to expect from a credit rating reduction.
RELATED STORY: Debt ceiling fight: What a downgrade would mean
CNN's Richard Quest reports on a UK tabloid's hacking of crime victims' phones & what Hugh Grant is doing about it.
SEE ALSO: Hacking scandal exposes secrets at Murdoch's tabloid
AND VIDEO: Hugh Grant wades into hacking fray