Taking photographs and videos of things that are plainly visible in public spaces is a constitutional right — and that includes the outside of federal buildings, as well as transportation facilities, and police and other government officials carrying out their duties.
You BNSF guys that harassed me today best not try it again. You were over the line and off your company's property. Because it was early in the day and I only wanted to get rid of you, I gave you a few answers to placate your simple minds. Try me again.