that was true for me when i was in oregon. you could ask for id for verificatio. of who you are, lying about whk you are or your acitities gives resonable suspicion to look for probible cause of a crime or on about to be commited.
in the second case the vid was taken at a border crossing where those questions are entirely valid. the dissention in answering them is such an abnormal response that in itself you have reasonable suspiscion . remember it was reasonable suspiscion that lead the border officer to ask abiut why the guy was sweating in the mellenium bomber plot in blaine washington