Members of the Secret Service follow President Obama as he arrives at Northwestern University in Evanston, Ill., in 2014. Brendan Smialowski/AFP/Getty Images hide caption

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Secret Service Director Joseph Clancy testifies before a Homeland Security Subcommittee hearing on the Secret Service budget Tuesday, when he responded to sharp questions about misconduct by his agents. Jim Lo Scalzo/EPA /LANDOV hide caption

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Joseph Clancy has been named the permanent director of the U.S. Secret Service. Clancy, who has been the agency's acting director since last October, is seen here testifying on Capitol Hill last November. Drew Angerer/Getty Images hide caption

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The Secret Service released this photo of a "quad copter" that crashed on the White House grounds Monday. The agency says the copter's operator reported crashing it this morning. Secret Service hide caption

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The Secret Service released this photo of a "quad copter" that crashed on the White House grounds Monday. The agency says the copter's operator reported crashing it this morning. Secret Service hide caption

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A review panel says changes are needed at the Secret Service — along with a better fence at the White House. Here, members of the Secret Service Uniformed Division stand in front of the White House. Kevin Dietsch/UPI /Landov hide caption

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Secret Service respond on the North Lawn of the White House after a man jumped the White House fence Wednesday night. This latest incident comes about a month after a previous fence-jumper sprinted across the lawn, past armed uniformed agents, and entered the Executive Mansion. Jacquelyn Martin/AP hide caption

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