The Obama administration has announced a new expansion of sanctions against Iran. On Wednesday, the Treasury Department said it would pressure countries buying Iran’s oil to withhold direct payments and instead force Iran to purchase their goods. The Treasury also widened a sanctions list to include Iranian media groups involved in state censorship. Following the announcement, Iran’s top leader, Ayatollah Ali Khamenei, announced his rejection of Vice President Joe Biden’s recent call for direct talks. Top Iranian leaders including President Mahmoud Ahmadinejad had made favorable statements about the offer earlier in the week, but Khamenei said negotiations would do nothing to resolve U.S.-Iran differences. Iran, meanwhile, has also released what it says is surveillance footage extracted from a U.S. drone captured inside its borders in 2011.