Americans may be surprised to learn that the United States has been an active participant in mosque construction projects overseas: the US government helped save the Amr Ebn El Aas Mosque in Cairo, which dates back to 642, the mosque’s namesake was the Muslim conqueror of Christian Egypt, who built the structure on the site where he had pitched his tent before doing battle with the country’s Byzantine rulers: auditors at the Inspector-General’s office of USAID have found that while USAID was funding some religious activities, officials were “uncertain of whether such uses of Agency funding violate Agency regulations or the Establishment Clause of the First Amendment to the Constitution” when balanced against foreign-policy objectives.
via:[http://www.washingtontimes.com/news/2010/aug/10/tax-dollars-to-build-mosques/]