It’s no secret that the greatest threat to our national security is wizened, old grandpa hippies. Their patchouli oil and fair trade organic milk syndicates and stories about hanging out with Timothy Leary could render our nation asunder.

That’s why the bravery and web savvy of an unnamed United States border guard deserves applause. Without his nimble use of Google in a key crisis moment, 66-year-old Canadian psychotherapist Andrew Feldmar could be walking the streets of America right now, spreading his radical pro-LSD propaganda.

Sometime last summer, Feldmar, a Canadian Jew whose parents were interned at Auschwitz, tried to enter the U.S., allegedly to visit a friend in Seattle. The father of two adult children living in the States who holds degrees from several American universities, Feldmar typically invaded the United States about five or six times a year.

The border guard took Feldmar’s visa, and Googled Feldmar’s name. The search revealed a 2001 article Feldmar wrote about possible therapeutic benefits of LSD for the interdisciplinary journal Janus Head. In that article, Feldmar recounted an LSD trip he took himself in 1967.

The guard read that part with great interest, and led Feldmar into a bare room decorated only by an American flag. Explaining that because of his admission of drug use in the article, the guard informed Feldmar he was permanently denied entry into the U.S. under the Homeland Security Act. Feldmar protested, but the guard was like “In your face, Wavy Gravy,” and told him to contact the Department of Homeland Security to apply for a waiver.

The legal process and expense proved too much for the onetime psychedelic ranger.

So sleep well, America, knowing you’re safe from the likes of Feldmar and his ilk. For now.