Adventures In Censorship

We're researching a real-life Broken Arrow event in one of my classes. It's an interesting story - back in 1969, a B-52 from Plattsburgh AFB carrying nuclear weapons crashed on Greenland. But that's not what this post is about.

In the course of our research, we came across a document that struck me as so odd I had to take a photo and publish it here. I felt like a spy, using my camera phone to take a picture of a document about nuclear weapons, even tho it's all unclassified. In fact, we found this doc thanks to Google. But take a look at this page and see if you can figure out what word they blacked out...



Hmmm, "the B-52 with four #### Weapons" - what could fit there? I'm thinking, "conventional?"