Whether he was an opposition figure or not is irrelevant to his involvement in Iran's nuclear program. One thing that you pro-opposition folks forget--the Iranian opposition is firmly behind Iran's nuclear program. It's a source of national pride that transcends Iran's local politics.
North Korea insists it 'regrets,' not apologizes, over mine blast that killed 2 South soldiers (AP)
from the article: Iran: Israel, U.S. killed pro-Mousavi nuclear scientist