Don’t tell the TSA or soon we’ll have robocops on every plane. Perhaps it’s time to rethink the pile of rules and regulations and start with something evidence-based? Is profiling based on appearance and race so bad (ethically? bad how?) that it’s not worth the massive gains in efficiency we would experience getting through airports? Seems unlikely. Pre-check seems to be a step in the right direction; we should be able to give up privacy in exchange for not having to get to security 3 hours before our flights.