Assassinations, cyber-attacks and possible military strikes: As nuclear negotiations with Iran enter a crucial stage, Tehran is voicing fears that tougher oversight of its activities will increase the risks of an attack on its atomic facilities and the scientists working on them. Iranian fears that the country’s nuclear activities are a target are plausible but some nuclear experts say such concerns are overblown. Five of Tehran’s nuclear scientists and researchers have been killed in Iran since 2010 and a computer virus aimed at the heart of Tehran’s nuclear program temporarily slowed its uranium enrichment activities three years ago. Since then, Iran has claimed to have thwarted other potential malware invasions. It blames Israel, the United States or their allies for the physical and virtual attacks There have been no reports of recent attacks, but Iranian officials are clearly concerned that opening their nuclear program to greater […]