Two top Senate Republicans criticized HHS Secretary Sylvia Burwell this week for lacking transparency in how CMS has addressed acting Administrator Andy Slavitt's relationship with his former employer. Slavitt was a top official at Optum in 2013 when the company worked with key Healthcare.gov contractor QSSI to help fix the botched website. Optum and QSSI are both subsidiaries of UnitedHealth Group, which oversees one of the nation's largest health insurers and sells exchange plans in about two dozen states. Senate...