Sheppard smirks a bit in amusement-he's used to that sort of arguing. And since his team members are currently scattered all over the place...it's refreshing to see that sort of familiar bickering again.

"It was that or actually explode. See, the Wraith-life-sucking aliens, not that friendly to us-decided to keep ramming into the shields until the broke and they could get in. The only way we could get rid of them was to make it look like the city was actually destroyed, so they'd give it up." He pauses. "Worked okay for awhile, but now it's...kinda under threat of being nuked again. For real this time."