1. GULF SPILL
Ruptured BP well tops Valdez as worst U.S. spill
The massive oil spill in the Gulf of Mexico would be the worst in the nation's history if new oil flow estimates released today by a federal research team are accurate. The BP PLC well could be pouring as much as 25,000 barrels a day into the Gulf, federal scientists said today. Flows at those levels over a month's time in which responders have been unable to stop the leak would eclipse the 262,000 barrels that spilled in the Exxon Valdez disaster, the nation's worst spill to date.