The Senate Armed Services Committee's fiscal year 2021 defense authorization bill would bar the Pentagon from complying with the Federal Communications Commission's decision to approve Ligado Networks' L-band network until the Defense Department submits cost estimates associated with potential GPS interference. The bill would also require DOD to work with the National Academies of Science and Engineering to conduct an independent technical evaluation of the FCC order, “to review Ligado’s and DOD’s approaches to testing,” according to a summary of...