foreign expropriation loss
For purposes of this section, the term “foreign expropriation loss” means any loss sustained by reason of the expropriation, intervention, seizure, or similar taking of property by the government of any foreign country, any political subdivision thereof, or any agency or instrumentality of the foregoing. For purposes of the preceding sentence, a debt which becomes worthless shall, to the extent of any deduction allowed under section 166(a), be treated as a loss.