10:39 in the video Explorer One is the following:
Pickering had once half-joked that JPL could do anything, but building the corporal proved a humbling assignment. While the first test went well, the next few were disastrous.
John Casani, JPL engineer: We had some that went south; the term “went south” means we fire them from the launch area at White sands the firing range was north. South of the firing range was Mexico, Juarez and what have you, so it was not good to go (south). But we had some that actually instead of going this way they went up the wrong way; they “went south."
Question: Did Corporal or other rockets launched from White Sands land in Mexico? If so, how often? (bold font added)