If you ask me, they may have ended up setting themselves up for the loss of the Krogan race with the measures they took. I know they're a bit...well hard to handle, but the steps the Council took still seem extreme in any case.
So you'll really let me help? Well that went a bit easier than I thought it would. I try to avoid getting involved with the politics of the galaxy but I guess in some cases it's just impossible to avoid. Especially during hostile times like these.
If they're capable of wiping out an entire civilization just on a whim, how can they be stopped? I know you've dealt with them before, so you know what you're doing all but the whole thing just seems mad.