US Ambassador to the United Nations Nikki Haley warned Russia and Iran of "dire consequences" if they continue airstrikes against the last rebel-held area in Syria and said the US would respond to any use of chemical weapons. Russia's ambassador to the UN met Haley's threat with a denial that Syria has any chemical weapons, as the UN secretary-general warned of a potential "bloodbath" during Tuesday's UN Security Council meeting on the crisis in Idlib, Syria.(Snip) Haley said that pro-regime forces are also "conducting ruthless 'double tap strikes' on civilian volunteers like the White Helmets," in which they "strike an...