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The subpoena is the second Mr. Issa has issued during his investigation, which began more than eight months ago. Earlier this month he issued one to the the veteran career diplomat who led the State Department-chartered investigation into the assault — in which dozens of heavily armed extremists attacked first the U.S. diplomatic compound in Benghazi, and then a nearby CIA base known as the annex.

The subpoena to retired Ambassador Thomas R. Pickering was withdrawn last week, after he agreed to appear voluntarily to be interviewed by House investigators behind closed doors.

The ten officials whose communications were subpoenaed on Tuesday are: Mr. Burns, Ms. Nuland, Principle Deputy Assistant Secretary for Near Eastern Affairs Elizabeth Dibble, Acting Assistant Secretary for Near Eastern Affairs Beth Jones, Under Secretary for Management Patrick Kennedy, Counselor and Chief of Staff to Mrs. Clinton Cheryl Mills, Deputy Secretary for Management Thomas Nides, Deputy Assistant Secretary Philippe Reines, Director of Policy Planning Jake Sullivan and Assistant Secretary for State for Legislative Affairs David Adams.