Where’s Don Johnson when you need him? It was Don and New-Wave South Beach deco that brought down “the Wall.” You know, the one in Berlin. Reagan? Nah. That’s a bunch of Republican rubbish.

No kidding. An AP story back in 1989 made a case for how the fall of the Berlin Wall was largely due to yearning among West Berliners for the good life, the goodies, in particular, portrayed in the seminal “Miami Vice,” which breached the Wall via satellite transmissions from the West. It was technology, after all, killed the beast — iron-fisted communism, in the case.

Now, the new Iron Curtain that is being spun around Iran is already threatened by technology. This time in the form of YouTube, Facebook, and, yes, the Almighty Twitter.

Isn’t it fitting on the day that freedom-starved Iranians harnessed Twitter and YouTube to tell its story to the world, the Associated Press’ Stylebook sanctioned the lowercasing of the verb form of Twitter (as in to tweet) and the noun form (as in a tweet). On this momentous day, they should have declared them all caps.