Oil in spotlight as Trump's Iran warning rattles sleepy markets

West Texas Intermediate was up more than one percent, nearing $64 per barrel, while Brent eased slightly to just under $69. Trump warned Iran of the "consequences of not making a deal" ahead of talks between Washington and Tehran in Geneva. The US president has repeatedly threatened military action against the Islamic republic -- first over its deadly crackdown on anti-government protests, and then more recently over the country's nuclear programme. The warning rippled through markets in an otherwise quiet start to the week...