Do I get to inveigh against all software developers every time armed drone C&C software plays a role in killing a civilian somewhere?
Then of course you could counter-argue that the person doing the criticizing was related to some of the people that were killed, and therefore they might not be impartial either, even though I never said (nor would have suggested) otherwise, and even though that does nothing to make you look less prejudiced.
And then the whole stupid thing could continue to spiral out of control until someone else suddenly showed up late to the argument and brought with them some absurd analogy that requires some serious stretching to be at all applicable to the discussion at hand...
But your logic wouldn't work even if we stipulated that he defended the prosecutor, because defending prosecutors doesn't make you a prosecutor.
It's you, who tried to cut short a debate by saying that Rayiner was defending "his profession" and talking his own book, who's making the dubious argument.
Nobody is calling you out on it because we're all upset about Aaron Swartz and we can obviously all see which way the wind is blowing on the topic here. But I like Rayiner and would like to see him stick around here, so I'll say it: you're out of line. Stop it.