As the New York Times reports, there’s still time for this measure to fizzle. If the Trump administration concedes, granting unrestricted travel to the bloc, then Americans will be able to freely vacation without visas. In the meantime, the European Commission -- the bloc’s main governing body -- has two months to decide whether to implement the ruling.
Of course, the one thing in America’s favor here is the European tourism industry. Forcing the entire country to apply for visas just to drink wine in Granada and eat doner kebab in Berlin would deprive Europe of revenue it largely needs. Whether the EU wants to shoot itself in the foot in this regard really is a gambit left up to its lawmakers.
A lot of this is tied up in archaic Cold War hysteria. Many moons ago, most of the countries ensnared in this fiasco were nestled within the Soviet Union's sphere of influence. As a nation, we’re still nursing a hangover from that era.