Amid growing concerns of security risks to members of Congress, more than 50 senators have been issued satellite phones for emergency communication, people familiar with the measures told CBS News. The devices are part of a series of new security measures being offered to senators by the Senate Sergeant at Arms, who took over shortly after the assault on the U.S. Capitol on Jan. 6, 2021. The satellite phone technology has been offered to all 100 senators. CBS News has learned at least 50 have accepted the phones, which Senate administrative staff recommend senators keep in close proximity during their...