That's right, the plan these geniuses have come up with is quite straightforward: Cool the volcano down. Obviously, supervolcanoes generate a lot of heat -- the heat of six industrial power plants, to be precise. So NASA wants to drill down into it, pump it full of water, and turn it into a giant kettle, letting the water absorb some of the heat in the chamber and then float away as hot steam. Rinse and repeat forever, and the volcano should be able to let off enough steam (literally) to remain stable.
Unfortunately, this is going to require some sacrificing. We're never going to live long enough see if it works; the process is estimated to take hundreds, if not thousands of years. It's also going to cost $3.46 billion, and therefore require politicians to sign off on a plan that costs a lot of money and isn't totally insane. To counter this, NASA has pointed out that the heat generated by the project could be siphoned off by a geothermal plant and used to produce dirt-cheap energy (roughly $0.10 per kWh). And all American politicians have to do is spend a lot of money on an alternative energy source that won't have any benefits until long after they're out of office.
So yeah, we're all doomed.