Lawmakers are raising the alarm that ongoing U.S. and Chinese research partnerships are developing technology that could be used against the U.S.

Members of the Select Committee on the CCP sent a letter to Secretary Antony Blinken this week asking the Biden administration to sever the “Agreement Between the United States and the People’s Republic of China on Cooperation in Science and Technology.”

In the letter, committee representatives cited reports that research partnerships between the U.S. and China organized under the Science and Technology Agreement have developed technology that could later be used against Americans.

One of the reported partnerships is between the U.S. National Oceanic and Atmospheric Administration and China’s Meteorological Administration. Under the STA’s authority, the groups worked to launch technologically advanced weather balloons to study the atmosphere in 2018.