What's a good way to explain being overly ambitious as a weakness in a job interview?

Are there few major Muslim scientists because every time they reach a breakthrough they get disposed of by the Mossad, just like that female Egyptian nuclear scientist?
Do you think the deal between the U.S. and Saudi Arabia for a civilian nuclear program is enough to prevent the enrichment of uranium to weapons-grade levels?
What are the reasons behind governments labeling certain religious groups as extremist, even when they don’t engage in violence?