1) Why did Nell show up as Yuu and Wolf were 'facing off' with that Italian super-hacker guy and threaten to shoot them? I understand if she just wanted to carry out command's orders, but why did she threaten to shoot Wolf? Why did they send her in the first place? Did they just not know that Yuu and Wolf had the situation under control?

2) Why the hell did the super-hacker shoot himself? Was he just guessing that it would start everyone else shooting too?

3) Why was Nanna's father acting like Kananase (Yuu's sister) did something horrible to him in episode 12, pointing the gun at her and all? What did she do? He was yelling something about her not following his orders... what orders were those?

4) In the beginning of episode 13, why did that fat from the American military guy get so upset as Yuu's sister? He was acting like she found out some kind of secret of his, but I have no clue as to what that might be (honestly, I have difficulty following 99% of the things that woman says).

I'm sure there's more, but if anyone knows even one or two of those, that would be nice... =p On the other hand, if someone's seen the whole show already and knows that these are things that get explained later and can point that out, that would be very helpful too.