[Nathan nods once at her answer.]

I'd consider it a courtesy if you could give me an answer within one week. Because if you aren't going to attempt to destroy them, I will. And the longer the delay, the more dangerous the mission becomes.

If you do accept my proposal, I suggest infiltrating them. Present yourselves as promising new recruits and they'll welcome you in. You can gather intel, find their weaknesses, and determine the best moment and method to strike.