Tell them everything and be safe
My thinking was something like, “You want to watch me? Fine. But I can watch myself better than you can, and I can get a level of detail that you will never have.”
<…>On my Web site, I compiled various databases that show the airports I’ve been in, food I’ve eaten at home, food I’ve eaten on the road, random hotel beds I’ve slept in, various parking lots off Interstate 80 that I parked in, empty train stations I saw, as well as very specific information like photos of the tacos I ate in Mexico City between July 5 and 7, and the toilets I used.
These images seem empty, and could be anywhere, but they’re not; they are extremely specific records of my exact travels to particular places. There are 46,000 images on my site. I trust that the F.B.I. has seen all of them. Agents know where I’ve bought my duck-flavored paste, or kimchi, laundry detergent and chitlins; because I told them everything.
“You Want to Track Me? Here You Go, F.B.I.” by Hasan M. Elahi (The New York Times Sunday Review)