Quote Originally Posted by LCR View Post
There's something I've just noticed: What about Capt. Braxton and his time cops? They were all over Voyager for, in comparison, minor transgressions, yet they don't intervene when someone blows up Vulcan.
They're Federation timecops. Chances are that in their time, there's some sort of complicated arrangement or treaty that each power's own timecops don't mess with other powers' business - otherwise the end result would be a continually-shifting time war scenario.

So maybe Nero's out of their jurisdiction. Which means that it would be down to the Romulan timecops to stop Nero. And hey - maybe they don't care!