{TAIL ~ A method} for making {HEAD ~ a target file} impractical to be retrieved, comprising: 
{ TAIL ~ A method } for making { HEAD ~ a target file } impractical to be retrieved , comprising :
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH