It IS because of the removal of radio. If you want to fix it, well, I'll just post the fix here myself. That'll save everyone the trouble of doing it.
Here's what was wrong: when they made the patch, they forgot to remove, then renumber the science comment that is supposed to occur with Radio. Since it wasn't elliminated, it messed up the text comments for all the techs placed in the editor after it. Replace script.txt with this good one and the problem will be solved!