In a letter sent Tuesday, Sens. Richard Blumenthal (D-Conn.) and Ed Markey (D-Mass.) expressed concerns over whether or not the project protects user data, and inquired as to what exactly the tech giant plans to do with the information, asking, for example, if the company plans on sharing it with certain governments or research groups. “Location data sharing carries with it myriad risks, and while we commend Google’s efforts to assist in combating the coronavirus pandemic, we caution you against steps that risk undermining your users’ privacy,” the senators wrote. Blumenthal and Markey have given Pichai until April 14 to respond.