The leader of the Houthi uprising in Yemen, Mohammed Ali al-Houthi, has asked the United Nations to sell a cargo of crude to generate revenues that will be used for the purchase of fuel and salaries for public sector employees, Reuters reports, citing a tweet by the rebel leader. “We call on the U.N. and the Security Council to put in place a mechanism to sell Yemeni crude oil, including the oil in the (floating storage tank),” Al-Houthi tweeted, referring to a cargo of crude that has been floating off the coast of the country since…