Thumb drive is believed to contain copies of emails Clinton sent as secretary of state Getty ImagesFormer Secretary of State Hillary Clinton attends a round table announcing a childhood development initiative with Chirlane McCray, the wife of New York Mayor Bill de Blasio.Hillary Clinton is turning over to federal authorities the private computer server she used to handle her emails when she served as secretary of state, an unexpected move and an attempt to quash ongoing concerns that her unorthodox approach included insufficient safeguards to protect government secrets. A spokesman for Clinton’s presidential campaign said Tuesday that she had directed her team to give to the Justice Department both the computer server — which had been kept at her home in Chappaqua, N.Y. — and a thumb drive containing copies of her emails. ‘It’s about time.’ Speaker of the House John Boehner Clinton’s decision to relinquish her computer server is a surprise twist in a controversy that has shadowed her presidential bid. An expanded version of this report appears at WSJ.com.