Actually, I looked it up. Irruption is, in fact, a word.
irruption (n): 1. a breaking or rushing in. 2. A violent incursion.
His understanding of Darwin is a tad superficial (not surprisingly), but he did use a cool word that I had to look up.
For example, he wrote an article for TAS a few years ago that if not quite defending Peter Duesberg's wacky AIDS theories tried to lend them some legitimacy that wasn't deserved.
I stand corrected.
I look forward to working with my new overlords.