NEW ORLEANS -- Now that the worst offshore oil spill in U.S. history has effectively been stopped, the White House is considering an early end to its moratorium on deepwater drilling.


But four months after the explosion of the Deepwater Horizon, regulators have only started to make good on promises to overhaul drilling. Tough measures are stalled in Congress. A $1 billion emergency response network proposed by the industry won't be operational for another year.

And while doomsday scenarios from the BP spill, like oil washing up the East Coast, have not come to pass, there are no guarantees that drilling will be any safer once it does resume.

What's changed is "not enough to make a big difference," said Charles Perrow, a Yale professor who has studied the spill in the Gulf.

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