Did the US know about the Mumbai attacks in advance?

Two of the three wives of David C. Headley, the Pakistani-American who pleaded guilty to helping to plan the Mumbai terror attacks in November and December 2008, warned American officials that Headley was a member of Lashkar-e-Taiba, a terrorist group created and sponsored by Pakistan’s powerful intelligence agency. Headley was working at the same time as an informant for the US Drug Enforcement