in 1954, the government of bolivia began taking land from francisco loza, a bolivian citizen and resident, for public projects, including an international airport. the government directed the payment of compensation in exchange for at least some of his land, but the government never paid the full amount. in 1993, the bolivian government acknowledged that debt, which was approximately $250 million, but still did not pay. because mr. loza had passed away, his heirs, genoveva and marcel loza, who were both u. s. citizens, filed a suit in a federal district court in the united states against the government of bolivia, seeking damages for the taking. can the court exercise jurisdiction?