(b) Responsibility of Foreign States.—A foreign state shall not be immune from the jurisdiction of the courts of the United States in any case in which money damages are sought against a foreign state for physical injury to person or property or death occurring in the United States and caused by—
(c) Claims by Nationals of the United States.—
Notwithstanding section 2337(2) of title 18, a national of the United States may bring a claim against a foreign state in accordance with section 2333 of that title if the foreign state would not be immune under subsection (b).
(d) Rule of Construction.—
A foreign state shall not be subject to the jurisdiction of the courts of the United States under subsection (b) on the basis of an omission or a tortious act or acts that constitute mere negligence.