How many ways is this not a Nirvana reunion?

Entertainment Weekly reports:

John Kerry is touting his diplomatic skills as a reason to vote for him for president; for example, he's managed to reunite the surviving members of Nirvana for their first public appearance in more than a decade. Dave Grohl announced that he and Krist Novoselic will both attend a rally on Tuesday in Las Vegas, in the parking lot of the Stardust casino, to kick off a Kerry campaign bus tour aimed at motivating college students in the last couple weeks before the election. Bassist-turned-activist Novoselic, who has a new book out, Of Grunge And Government, will speak, and Foo Fighters frontman Grohl will perform; alas, they're not expected to perform together.