I still use my US Passport as ID for TSA - less likelihood of identity theft, or just plain theft, given that the TDC would have both my destination (from boarding pass) and home address if I used my DL. Ripe for burglary while I'm gone.
However, I use two large paper clips to clip all the pages except the photo page together, which also secures my yellow immunization card safely. I've never had TDC look further at all those "squiggly letter A-rab visas." (They are actually from Pakistan and Afghanistan, but never mind)