U.S. President Joe Biden on Thursday ramped up the government's vaccination campaign against the spread of a contagious variant of the novel coronavirus, requiring millions of federal employees to wear masks on the job and comply with regular testing unless vaccinated.The U.S. capital, meanwhile, said it will make indoor masks mandatory for all people over the age of 2, regardless of their vaccination status, effective Saturday morning.The moves came after health authorities reversed their earlier guidance and decided to ask people, even if inoculated, to wear masks indoors in parts of the …READ FULL ARTICLE