Iran Nuclear Weapon, Nuclear Weapon | featured news

WASHINGTON — In a move Democrats denounced as trying to sabotage the Obama administration’s foreign policy, Sen. Rob Portman and 46 other Senate Republicans yesterday warned Iran’s leadership that any agreement to limit Tehran’s apparent efforts to build a nuclear bomb would need Senate approval to stay in effect beyond 2016.

The Senate on Friday resoundingly approved new sanctions on trade with Iran's energy, port, shipping and ship-building sectors, its latest effort to ratchet up economic pressure on Tehran over its nuclear program.

Iran will go on refining uranium "with intensity" and the number of enrichment centrifuges it has operating will rise substantially in the current year, the country's nuclear energy chief was quoted as saying on Wednesday.

A diagram obtained by The Associated Press shows that Iranian scientists have run computer simulations for a nuclear weapon that would produce more than triple the explosive force of the World War II bomb that destroyed Hiroshima.

Iran said on Tuesday it would stop oil exports if pressure from Western sanctions got any tighter and it had a “Plan B” contingency strategy to survive without oil revenues.

Israeli Prime Minister Benjamin Netanyahu said Thursday that a firm ultimatum to Iran is the only peaceful way to stop the regime in Tehran from getting atomic weapons, increasing pressure on President Obama weeks before the U.S. presidential election.

Israeli Prime Minister Benjamin Netanyahu will make his case against Iran before the United Nations General Assembly on Thursday, arguing that time is quickly running out to stop the Islamic Republic from becoming a nuclear power and the threat of force must be seriously considered.

President Barack Obama declared on Tuesday the United States will "do what we must" to prevent Iran from acquiring a nuclear weapon as U.N. Secretary-General Ban Ki-moon warned against threatening attacks whose consequences would be devastating.

Israeli Prime Minister Benjamin Netanyahu took his case on Iran directly to U.S. voters Sunday, telling the American public in televised interviews that the White House must be willing to draw a “red line” on Tehran’s nuclear program, comparing Tehran’s nuclear program to Oklahoma City bomber Timothy McVeigh and reminding Americans of the devastating repercussions of failed intelligence.

Iran says explosives cut electric power lines to an underground enrichment plant last month.