A United States senator wrote to Microsoft and LinkedIn on Thursday demanding an explanation for the professional networking platform’s recent decision to block China-based users accessing the accounts of several US journalists. Earlier this week, LinkedIn blacklisted the accounts of Axios’ Bethany Allen-Ebrahimian and independent journalists Melissa Chan and Greg Bruno, the latest in a string of actions the Silicon Valley-headquartered company has taken to preserve access to the Chinese market. LinkedIn is owned by Microsoft. In a letter to Microsoft CEO Satya Nadella and LinkedIn CEO Ryan Roslansky, Senator Rick Scott, a Republican from Florida, called the move a...