By Alexandra Alper and David Shepardson WASHINGTON (Reuters) – A bipartisan group of U.S. senators plans to introduce legislation on Thursday that would give the Biden administration the power to block exports of U.S. personal data to countries like China that they say pose national security risks. The bill, cosponsored by Finance Committee chair Ron Wyden, a Democrat, and Marco Rubio, the top Republican on the U.S. Senate Intelligence Committee, aims to protect Americans’ sensitive personal information from being sold or transferred to high-risk foreign countries. “Right now it’s perfectly le…