So, now foot-tapping is protected by the First Amendment. What’s next? Nose-scratching? Coughing?

CNN’s Political Ticker blog reports that lawyers for Idaho Sen. Larry Craig argued in court today that foot-tapping — the infamous alleged sex solicitation signal between Craig and an undercover cop in a Minneapolis-St. Paul men’s airport bathroom — is free speech. Craig is asking the court to throw out his 2007 guilty plea.

I was recently in the Minneapolis-St. Paul airport to attend the Republican National Convention. There was a a bit of talk about sending me to find the bathroom and write about it. I didn’t.

For one, I couldn’t go into the men’s bathroom without attracting law enforcement attention. Two, it’s not like Craig is still there. Three, the airport has a lot of bathrooms and it hasn’t put up an identifying plaque on THE bathroom door, such as the “The Foot Tapper Crapper.”

But if you really, really want to see it what the door looks like, check out my intrepid colleague Carla Marinucci’s blog at the San Francisco Chronicle.