Since so many people travel to foreign countries by air, these electronic travel authorization programs are about stopping people before they board a plane (or

Since so many people travel to foreign countries by air, these electronic travel authorization programs are about stopping people before they board a plane (or train, since the UK has the channel tunnel). There was a brief golden age when you could show a passport from a western country at the border of many other countries and they would let you in. No planning ahead required. I think we will see reciprocal waivers return at some point, once countries realize their citizens are affected by these policies as well.