Several media outlets recently reported that former Russian intelligence officer Sergei Skripal and his daughter, Yulia, whom the United Kingdom accuses Russia of poisoning, had been offered protection by the United States. Considering the special relationship between the U.S. and British security services, which dates back to World War II, the offer is hardly surprising. And from a safety and security perspective, hiding the Skripals in the United States makes more operational sense than their remaining in the United Kingdom....