Iranian missile and drone attacks have inflicted damage on U.S. intelligence posts and surveillance hardware in the Middle East that is more extensive than any destruction America’s spy agencies have endured and will cost billions of dollars to repair, according to four people with knowledge of the matter.

The Iranian strikes have forced Congress to find funds to restore the targeted facilities and prompted officials to weigh how to deploy personnel and intelligence resources in a region now facing a heightened threat from Tehran’s drone and missile arsenal, two of the people said.
Iran’s air attacks also have raised questions about why the Pentagon, the intelligence community and the State Department were not better prepared to defend government facilities from drone and missile strikes, military experts and former U.S. officials said.