Putin dials up anti-U.S. rhetoric, keeps mum on re-election

By Polina Nikolskaya and Andrew OsbornSOCHI/MOSCOW (Reuters) - President Vladimir Putin launched one of his most stinging critiques of U.S. foreign policy on Thursday, listing what he called some of the biggest betrayals in U.S.-Russia relations.Instead, he used a high-profile televised discussion with foreign academics in southern Russia to reach back to what he regards as the darkest days of U.S.-Russia relations.Opinion polls suggest that harsh rhetoric towards the West plays well with many R