Whether the FTCA's foreign-country exception bars Alvarez's false-arrest claim against the United States when the DEA planned the operation in the United States but the alleged injury occurred in Mexico.
Holding
Yes. The exception bars all FTCA claims based on injury suffered in a foreign country, regardless of where the Government's allegedly wrongful act or omission occurred.
Reasoning
The FTCA generally waives sovereign immunity for torts committed by federal employees, but it expressly preserves immunity for any "claim arising in a foreign country." Alvarez's alleged false arrest was false, and caused him injury, only because he was seized and held in Mexico. The Mexican seizure was therefore the core of a claim arising in a foreign country.
The Ninth Circuit's headquarters doctrine would have allowed suit whenever domestic planning, supervision, training, or policy proximately caused an injury abroad. The Court rejected that approach because it would make the foreign-country exception easy to evade: nearly every foreign injury could be redescribed as the result of negligent domestic supervision or planning.
Congress used the phrase "arising in a foreign country" against the background rule that tort claims arise where injury occurs. The exception was designed to avoid subjecting the United States to liability governed by foreign law. Allowing headquarters claims would frustrate that purpose, because state choice-of-law rules would often select the law of the foreign place of injury even if the alleged Government planning occurred domestically.