Iran threatened on Monday to use its »full might» to endanger the United States` interests if Washington intensified its pressure on Tehran over its nuclear program, Reuters news agency reported. Ali Larijani, secretary-general of Supreme National Security Council, said that Washington should end its aggressive policies against Iran or face the consequences. »If pressured by America, Iran will use its full might to endanger America\'s interests,» chief nuclear negotiator Larijani was quoted as saying by the Siyasat-e Rouz daily. Larijani did not elaborate. The U.S. and its European allies claim that Iran is secretly working on an atomic weapons program, but Tehran insists that its nuclear plans are strictly for the peaceful generation of electricity. Last week, the International Atomic Energy Agency (IAEA) adopted a resolution, presented by the U.S. and the EU, giving Iran one last chance to halt nuclear activities or be referred to the United Nations Security Council for possible sanctions. In response, Iran threatened to block snap UN inspections of its nuclear facilities, resume uranium enrichment and cut trade ties with countries that backed the IAEA resolution. American officials have also alleged that Iran is aiding the resistance in Iraq and Afghanistan. The Islamic republic denies the claims.