Nuclear weapons have been around for over 50 yeras. We do not yet have __in place__ any ability (other than treaties and fear) to prevent a nuclear holocaust. Missile shields, "Star Wars" -- all of those are of questionable capability, and none of them are deployed.
Given that our only way of preventing nuclear winter is to agree not to launch (and go to war to prevent Bad Guys from getting them?), an option which is not available when dealing with a disease, I'm not optimistic about our future ability to prevent a superbug from wiping out humans.
But that's not the point I think Sam was making. I read the article as discussing a purposeful designing of a virus with specific properties. My contention is that the knowledge required to engineer something that can evade the immune system, spread easily, and cause high mortality is very likely the same mechanistic knowledge that would help you to defeat such a virus.
Remote sensing is what held off nuclear holocaust during the Cold War. The ability to reliably and quickly detect and respond to nuclear first strike creates the "mutually assured destruction" strategic framework aka deterrence.
At this point in time I'd still say that we only have the ability to reintroduce old disappeared pathogens. We do not actually have the ability to design new effective viruses.
Unlike the seasonal flu shot, this vaccine is tailored to the emergent strain.