The NIH isn't the only U.S. agency under scrutiny as a potential target for Chinese espionage. Sens. Chuck Grassley (R-Iowa) and Marco Rubio (R-Fla.) Monday wrote to the acting inspector general for Health and Human Services (HHS) to express concerns that the Centers for Medicare & Medicaid Services (CMS) may be providing payments for genetic testing or analysis to U.S. companies that have domestic partnerships with Wuxi Nextcode Genomics, Shenzhen BGI Technology Co. and other genomics firms with ties to the Chinese government.