You should assume that ITAR is completely random and non-sensical in what it restricts. My spouse used to design power systems for civilian communications satel

You should assume that ITAR is completely random and non-sensical in what it restricts. My spouse used to design power systems for civilian communications satellites and because of ITAR was forbidden from showing her client, a South Korean telecom company, an analysis indicating that the satellite they had purchased would not run out of power during its lifespan. The reason that ITAR came into play? The analysis involved calculating the satellite's orbital trajectory and eclipse schedule, and such information cannot be shared with foreign nationals under ITAR. What if the Chinese found out? They've only been predicting eclipses for a few centuries (millenia?) after all.... ETA: Technically ITAR shouldn't cover stuff like that, but in practice, the attorneys at my spouse's employers felt very strongly that it forbade disclosure.