The U.S. government has begun a partial shutdown for the first time in 17 years, potentially putting 800,000 federal employees out of work with no guarantee of back pay once the stalemate is over, and halting some government services as the Republican-led House of Representatives declined to approve a budget for the upcoming year. As a result, the Labor Department is expected not to release the closely watched U.S. monthly jobs data on Friday, as there will not be enough employees to compile one of the most influential economic reports in the world, which can heavily affect the global financial markets.