It was interesting to me that so many agencies became involved in this so quickly. From my understanding, the US Marshalls become involved when they believe they're dealing with a fugitive, or possible fugitive, I may be wrong on that. I can download an app on my phone which allows me to match faces with photos, therefore, I don't feel it's far fetched notion that the FBI, Homeland Security, local police departments, US Marshalls, etc. have that capability, and IY is in the system. The last place Aniah was seen was in that gas station...that's the first place I'd go, and I'm not in Law Enforcement.
As for your second point, I'm not sure where you're going with that. Would you please elaborate on your point (may be too early for me to get it).