Employees at the Environmental Protection Agency are attending mandatory training sessions this week to reinforce their compliance with laws and rules against leaking classified or sensitive government information. It is part of a broader Trump administration order for anti-leaks training at all executive branch agencies. The Associated Press obtained training materials from the hourlong class. Government employees who hold security clearances undergo background checks and extensive training in safeguarding classified information. Relatively few EPA employees deal with classified files, but the new training also reinforces requirements to keep Controlled Unclassified Information" from unauthorized disclosure. President Donald Trump has expressed anger repeated leaks of potentially embarrassing information to media organizations. In a speech last month, Attorney General Jeff Sessions said those responsible for the "staggering number of leaks" coming out of the administration would be investigated and potentially prosecuted. "We share the White House's concern with the unlawful leaks throughout the government," Justice Department spokesman Ian Prior said. A three-page fact sheet sent to EPA employees as part of the training warned that leaks of even unclassified information could have serious consequences to national security.