Despite killing of nuclear scientist and explosions at enrichment facilities, Iran building faster and more efficient nuke program that puts it in position to have bomb in weeks

Former prime minister denies any direct knowledge of operation, but blames Netanyahu for 'smug bragging' amid spate of leaks crediting Mossad spy agency for incident at nuke plant

Iran insists atomic goals are peaceful, but has long been accused of secret weapons program; meanwhile, Tehran blames US and Israel for cyberattacks, explosions and assassinations

Blast said caused by gas cylinders, according to Iranian media; incident latest in series of mysterious occurrences in Iran

Blast at centrifuge assembly facility may have set back development by 2 years, experts tell the NY Times, with series of strikes causing 'extreme internal and external pressure'

In preview of interview to air Sunday, Foreign Minister Zarif threatens US that it will not be able to finish any war it starts

Organization that tracks internet outages says activity detected consistent with a cyber attack, though the cause is unclear and impact limited

Mohammad Jahromi oversees Tehran's satellite program, accused by US of serving as cover for experiments on intercontinental ballistic missiles capable of carrying nuclear warheads

Assault that crippled Revolutionary Guard missile system result of massive investment in cyber warfare by American military, likely took months or years of preparation

Minister calls operation said to target missile systems 'cyber-terrorism, like Stuxnet,' referring to attack on Iranian nuclear facilities blamed on Israel, US