Sens. Marco Rubio, R-Fla., and Bob Menendez, D-N.J., pressed Energy Secretary Rick Perry Tuesday to disclose specific details of a "secret" nuclear technology export agreement with Saudi Arabia.

"We are very concerned about the nuclear proliferation risk associated with the Kingdom’s nuclear program," the senators said in a letter sent to Perry, requesting specific information on seven export licenses approved by Perry and first revealed last week.

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