"We want to do everything we can to make sure that that does not happen," he said, adding that the strengthened policy will close "loopholes" that allowed nongovernmental organizations to circumvent the policy.
Pompeo also said last month that the administration will fully enforce the Siljander Amendment, a federal law that prohibits the use of taxpayer funds-including foreign assistance-for lobbying either for or against abortion overseas.
Pompeo said that unsparing enforcement of this existing law would be "a substantial step."
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"We want to make sure that everything we do in the way that we contract, in the way we communicate, every organization to which United States taxpayers provide funds understands their obligation, their duty to ensure that there's not the promotion of abortion anywhere in the world," he said.
Pompeo disputed claims by Dr. Leana Wen, president of Planned Parenthood, that the policy will "censor" doctors abroad.
"We know the First Amendment here in the United States," Pompeo said. "We're doing nothing to deny anyone the ability to speak about a subject that they deem important and indeed even if they disagree with this administration's views. What we're simply saying is that the American money, American policy is going to push back. We're going to do our level best to ensure that the least amongst us, the unborn, aren't-with U.S. taxpayer dollars-aborted."