If they do decide to go ahead with it, and news gets out; this could be one of the sparks that sets the whole city ablaze with revolution. Imagine how it would look if they tried to kill Jack and ended up murdering dozens of unarmed locals instead. Not good for public relations, especially if an independent news drone captures it on film. If Tali is the one to authorize it from the Dart ship that's making its way to the crash site, her job and reputation would be on the line and she'd need all the influence her family possess to keep on top. That's also where Skull's radical news corporation comes in, making sure the footage is aired.

Can't wait. :sun