It looks to me like the authors of the paper probably didn't want to find the bug. But when some big kahuna at the DHHS heard about the FDA/NIH study he realised he had been asleep at the switch for the past nine months while a major discovery was unfolding. Now Mr.Bigkahuna is frantically trying to buy a bit of time and patch up a bunch of holes as this unfolds. There is no chance in hell of burying this thing at this point. Wall Street Journal, Nature, etc... this cat is out of the bag.