The Border Patrol conducts immigration stops near the Mexico-US border, asking drivers if they are US citizens. In response, privacy activists film the stops and post them to YouTube in protest. Zak Stone respects their efforts:

These checkpoints are considered constitutional, but technically, you can’t be detained without suspicion, and the Border Patrol officers are required to let people go, even if they choose not to answer the question. But that doesn’t mean the agents won’t get exceedingly pissed off by drivers’ non-compliance and make absurd demands–like one agent’s ask to search someone’s trunk because his car was “dirty.”