only in what has been a warm summer in the arctic. u.s. lawmakers grill a top facebook executive over the company's plan to leave for a crypto currency. if the tech giant can't convince washington to trust it what are the odds it can sway regulators around the world. also on the show the good times continue for 2 top u.s. investment banks reported solid earnings but it's not all positive news on wall street. and a new space race is preparing for liftoff and a german firm stand to profit from nations and companies lofty ambitions. this is your business report i'm stephen beard's in berlin thanks for joining us facebook executive david marcus told the new york times last month that the company's new cryptocurrency libra could be quote