The US government has increased the use of monitoring tools over the past decade. But President Donald Trump’s employee purges are making workers worry about how their data could be abused.

David Boren, the former Oklahoma governor and longtime U.S. Senate intelligence chief who went on to lead the University of Oklahoma after his retirement from politics, has died.

He served three terms in the Senate before stepping down to become president of OU. His public image was later tarnished by ...