[don-o]

What is the deal on the fuel cell? Did we not bring one mission home early due to a malfunction in a fuel cell?

[free_at_jsl.com]

I think there's a concern that they need all the power from 3 cells to assure the success of their science mission.

[Yo-Yo]

Richard Hogland was on Coast-to-Coast AM last night saying exactly this. There is a problem in one fuel cell's coolant circulation pump motor, and if they lose a fuel cell they have to come home. He can't believe they're even attempting to launch, given that if they do make it to orbit and the fuel cell dies, they will have to jetison the ISS beam payload. The Shuttle is too heavy to return with it in the cargo hold.