Monday : Allen and Chu approve BP plan to replace caps . Plan : switch will take 7 to 10 days during which oil will flow unimpeded . Oil spill commission appointed two new experts . Work on replacing the cap is to begin Saturday .
NEW : Allen and Chu approve BP plan to switch caps . NEW : switch will take 7 to 10 days during which oil will flow unimpeded . Oil spill commission hires 2 new experts . Work on replacing the cap is to begin Saturday .