'Vishumee shot a confused glance at the Spartan.  "What is this nerve gas?  How would it incapcitate the Flood?  And what would keep the Flood from slipping onto one of our ships as they purged the infestation?  You'd have to be prepared to destroy one of your on without a moment's hesitation."<br/><br/>'Vadumee nodded in agreement.  "So it was with our Sangheili fleets after High Charity fell.  Many of our ships had to be destroyed as the infection tainted them from the Ring.  It saddens my heart to see so many of our kind fall, but if we do not sacrifice those, then we'll lose entire planets."  'Vadumee looked back at 'Vishumee, the latter having fallen back into the line.  He then looked around the interior of the room.  "So, tell us of nerve gas, and assure us you'd be willing to destroy on of your ships, or one of ours, if even a hint of the infestation appears on them."