Their case is a sad 'comment' [='commentary'] 'on' the current state of the justice system.
When asked about his involvement in the scandal, he refused/declined to 'comment'.
We let the remark pass without 'comment'. [=we did not respond to the remark]
(..) talking to attractive women. Oh, thank you... - Mark. JANE: Mark... ...for that flattering yet totally inappropriate comment. Please sit. Before we get started, I think you should know that, uh, Mark's a bastard. Excuse me? I had him out of wedlock, so... (..)2009 17 Again