• Iranian lawmaker Mahmoud Nabavian calls for building an atomic bomb.
• Supreme Leader Mojtaba Khamenei orders military preparations for 'unrestricted' response.
• Iran faces prospect of renewed military action by US and Israel.
• Hardliners push to overturn Tehran's opposition to nuclear weapons.

This development may indicate a shift in Iran's nuclear doctrine, suggesting a more aggressive stance against the US and Israel. The call for an atomic bomb could escalate tensions and may lead to a significant increase in military preparedness, which could have far-reaching implications for regional security and global non-proliferation efforts.