A lot of people in the defense analysis industry don't put a lot of stock into Gerald Bull being killed because of Iraq's super gun program under Saddam H. The thing about Gerald Bull being killed by the Mossad is that he was also helping with the lesser known Iraqi orbital rocket program. The thing about a super gun project is that it is relatively difficult to conceal a very large cannon being constructed that just so happens to aim at Israel. Israel's air force had already successfully executed a precision bombing attack inside Iraq that destroyed a nuclear facility, so doing another such attack was relatively simple for them in the early 1990's. An ICBM or even an IRBM project would be something that they couldn't easily target (like the vintage Scud missiles) since they are easier to hide than a 1000 meter pipe several feet wide angled up at the sky.
In WWII, Nazi Germany was trying to construct a super gun aimed at England. The Allies didn't know what all the construction was about, but they chose to bomb the large construction site, eventually destroying the cannon before it could be finished.
I usually buy groceries for the refrigerator at work since I tend to eat 2 meals per day (3 if you include snacks), 5 days a week there.
"I'm a mean green mother from outer space" -- Audrey II, The Little Shop of Horrors