Obama thought deep-sea drilling was "absolutely safe"?!

Following the unfortunate silence of Dr. Sunstein, Byron York at TownHall.com notes:

There was one particularly striking moment in President Obama's widely panned June 15 speech on the gulf oil disaster. About midway through his talk, Obama acknowledged that he had approved new offshore drilling a few weeks before the Deepwater Horizon rig explosion on April 20. But Obama said he had done so only "under the assurance that it would be absolutely safe."

Absolutely safe?...when the president announced his drilling plan, on March 31, he said it was "not a decision that I've made lightly" and that he and his advisers had "looked at (it) closely for more than a year." Surely he was told of the possible risks....

So how did the president get the idea that new offshore drilling would be absolutely safe? Obama has often said he relies on a "green team" for advice on energy and environmental decisions. The top three members of the team are the director of the White House Office of Energy and Climate Change Policy, Carol Browner; Interior Secretary Ken Salazar; and Energy Secretary Steven Chu. Did Browner or Salazar or Chu assure the president that new offshore drilling would be "absolutely safe"?