In a diplomatic cable seen by Reuters, the Trump administration has instructed U.S. diplomats to oppose global efforts aimed at regulating data handling by U.S. tech firms, a move seen as part of a broader resistance to data sovereignty measures proposed by foreign countries. The cable, signed by Secretary of State Marco Rubio, highlights potential disruptions to global data flows, increased cybersecurity risks, and threats to civil liberties.The U.S. Department of State, while not commenting directly on the cable, has stated its support for cross-border data flows that encourage growth and safeguard privacy without imposing burdensome regulations. This position is…