london egyptian authorities accuse reuters bbc inaccurate coverage clash western desert security force arm militants police officer conscript kill friday statement egypt state information service sis say reuters make grave professional mistake rely unidentified security source resort official security authorities get correct information ministry interior initial statement friday give casualty figure friday clash saturday ministry statement say 16 police conscript kill another 13 wound remote western desert area come heavy fire arm group however three security source tell reuters many 52 police kill gun battle security source say involve militants fire rocket police convoy take seriously obligation report news fairly accurately careful report interior ministry account situation well information receive independently source reuters spokesperson say sis also criticize use word militant english version story reuters publish reuters english exchange term terrorists accurate realistic description elements term militants matter may give positive connotation reader statement say bbc issue report egyptian statement egypt authorities challenge reuters casualties western desert attack