I see 3 possibilities: They're cutting it off to limit bad news about climate change, for political reasons. Or they're trying to set up some private company to sell the same data.
Or (tinfoil hat on) they're going to do something the raw microwave data might expose and so they're trying to keep the microwave data secret.
Or (tinfoil hat on) they're going to do something the raw microwave data might expose and so they're trying to keep the microwave data secret.