Washington (AFP) - The United States is to repay Iran a $400 million debt and $1.3 billion in interest dating to the Islamic revolution, Secretary of State John Kerry said Sunday. The repayment, which settles a suit brought under an international legal tribunal, is separate from the tens of billions of dollars in frozen foreign accounts that Iran can now access after the end of nuclear sanctions. But the timing of the announcement, one day after the implementation of the Iran nuclear accord, will be seen as pointing to a broader clearing of the decks between the old foes. US...