Hugh sez, "Apparently DHS checkpoints nowhere near the border are a new thing. This video cuts together recordings of such encounters and citizens' polite refusal to answer questions."
Top quote: "Am I being detained?"
Checkpoints (some would say illegal checkpoints) have been popping up quite frequently in the USA. As you see in this video, you DO NOT have to comply with their question's or demands. Don't forget, you have rights.