The House Energy and Commerce Committee is pressuring the Environmental Protection Agency for answers on the use of secret email addresses by agency administrator Lisa Jackson and other top EPA officials.

Energy and Commerce Committee Chairman Fred Upton (R., Mich.) and Oversight and Investigations Subcommittee Chairman Cliff Stearns (R., Fla.) requested more information on the practice in a letter sent Thursday.

“In recent weeks, questions have been raised in Congress and among public interest groups about the use of one or more secondary email accounts and aliases by you and potentially other officials at the Environmental Protection Agency (EPA),” the lawmakers wrote. “Given your reported use of at least one alias email account in your conduct of agency business, we write to ask that you describe fully the nature and extent of this practice.”

Republican legislators and government watchdogs fear Jackson is conducting official business through secret email addresses to skirt public disclosure under the Freedom of Information Act.

The Republican-led committee seeks to know “whether conducting business with an alias has in any way affected the transparency of the agency’s activities or the quality or completeness of information provided to the Committee.”

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