My thinking was: if you put the entire resources of the USG onto the job, how hard is it to find a person who was at a specific location at a specific time, in

My thinking was: if you put the entire resources of the USG onto the job, how hard is it to find a person who was at a specific location at a specific time, in a city? (even if they have good opsec and didn't carry a cell phone). Also: given same resources, how hard is it to find a White Hyundai Elantra in Eastern Washington/Idaho panhandle? It it were a white F-150, sure that might be hard. But there just aren't many white Elantras in that part of the world.