There is something bothering me about Sera. I know that there is a thread about her elsewhere but this ties in with Amuro's identity. When she spoke of someone who never smiles, everyone assumed she was talking about Akai, her supposed brother. But I recall seeing him smiling often around Conan, though they were rather wry smiles (Rye smiles, sorry, I had to say it). The one person we see in flashbacks that never smiles is, well, Shiho, whose sister was killed because Akai betrayed the organization. It's a stretch, but if Sera were Bourbon, a huge curveball that Gosho might throw us, then perhaps Amuro is working for the FBI. Jodie's boss (sorry, forgotten his name and I'm doing this off the top of my head) seemed to recognize her when he was shown her picture, and Amuro did show up shortly thereafter. That would also keep with the Zeta theme I mentioned earlier with Char and Amuro on the same side. No, I don't really believe that's likely, but I think it's a good idea to keep other possibilities open since many people seem to be so sure of Amuro's identity based on assumptions centered around Gundam. And yes, I am definitely including myself.