Haven't seen this topic brought up, I thought it was pretty interesting. In the Spartan Ops episode 'Departure,' one of the Majestic Spartans talks about Covenant asylum seekers in Rio; he mentions a Sangheili terrorist who tried planting a bomb too. Pretty interesting that Earth's allowing Covenant species asylum - probably away from the persecution of the fanatical Storm. Whilst I'm sure most of them are unggoy, kig-yar and so on, the fact that a Sangheili was able to operate as a terrorist in Rio implies that enough of them are there that his presence wasn't out of the ordinary. I wonder if this has been going on for years, or if it's just been since the New Phoenix incident. Maybe some of the Storm wanted to get out, seeing what the Didact was prepared to do. Makes me wonder where the Arbiter is in all of this; if the Covenant's having to flee their home planets and colonies to get away from the Storm, they can't be too politically stable. Could be that he's on Earth as well.