Oh and for the tinfoilers out there who presume that ccp have rigged it so plex wont ever drop:
http://eve-kill.net/?a=kill_detail&kll_id=7118520
Plex do - as does anything - its just determined by randomness 
anyone who gets killed in hi-sec in a cov-op by a BS deserves to lose everything, you must be a retard for that to happen.
you are being targetted
*beep*beep*beep*
yawn, maybe i should cloak
*beep*beep*beep*
do you know what i dont think i will, maybe ill just align and warp.
*beep*beep*beep*
nah ill just sit here for the 30 secs it takes for him to target me
*beep*beep*beep* BOOM