Howling:Nanogene

If nanogenes can bring people back to life as said by ninth doctor in the doctor dances and shown by the corpses becoming dalek puppets in asylum of the daleks, then why does the doctor not use them? In every adventure he is in, he could carry some nanogenes with him and heal everyone. From anything, well maybe not things like disintegration. But even people exterminated by the daleks. Throw some nanogenes in there and boom, their all fine. Even tricey could have been brought back to life. --Coop3 ☎  12:29, March 16, 2014 (UTC)