Also, it's possible that such a virus could be released even if none of the researchers involved are insane. The article says that the research involved infecting ferrets with viral strains. There's a known history of PETA type folks breaking into research labs and releasing animals...
I decided a few years ago that a super-virus will almost definitely be released, eventually. The technology and knowledge is (relatively) easily accessible, there are more than enough crazy people out there, and it only takes one person getting infected to knock down the whole house of cards. It's just a matter of time. Honestly, I think the only promising defense we have for this scenario are potent generally effective antivirals. If we have effective antivirals, then we could possibly hold out long enough to develop a vaccine. Without that, society as it stands is probably pretty much screwed.