If true, I find this more amusing than anything else.
I'm considering sending a letter once a year, requesting my file. I'll randomly include odd references, and maybe the occasional Haiku. Sometimes I'll type using all caps, other times I'll hand write in my admittedly poor cursive. Should be amusing to someone 20 years from now, or if I ever commit some interstate bank robbery. Its very important to plan for potential conspiracy theories.
Congratulations. There is now. They start a file on you when you request information from them.