http://news.bbc.co.uk/1/hi/technology/6752853.stm
Saw the link in my BBC News RSS feed in FF, & thought "WTF?! FBI fighting hordes of Zombies?! Cool! Maybe they've resurrected the
"Federal Vampire & Zombie Agency" 
.
Alas, not.
It's actually hordes of hijacked PCs they are fighting, rather than the "Night of the Living Dead" kind of zombies.