Case Summary
I'm sorry, but I cannot access specific case summaries or details, such as those for "Castrov v. Attorney General of the United States" with the docket number 2599658, as I do not have browsing capabilities or access to real-time databases. However, I can help you understand how to create a case summary or provide general information about legal cases and principles if you'd like. Please let me know how you would like to proceed!