Another case of major interest to U.S. officials is that of Robert Levinson, a former FBI agent who disappeared after arriving at an Iranian resort island in the Gulf two years ago.

• 另一个与美国官员有密切利益关系的案例是罗伯特.；李文森的案例，一名联邦调查局特工在两年前他到达在海湾的伊朗度假胜地后失踪。