Following an offer from Iranian President Mahmoud Ahmadinejad Tuesday to free the three American hikers captured in July 2009 in exchange for Iranians jailed in the U.S., Hillary Clinton has publicly denounced such a deal. The Secretary of State called the allegations of spying "unjust," and demanded their immediate release on humanitarian grounds. The Americans were caught at the border between Iraq and Iran, where they were supposedly hiking as tourists. "There is not really an equivalence, if you will, between, say an Iranian citizen who has been indicted and/or convicted of arms trafficking in violation of international law and three hikers who wandered across an unmarked border," Assistant Secretary of State P.J. Crowley said.