Foreign hostages is a lucrative business for Mullah regime in Iran

It's because the Iran regime now more need to stand up economy That's because the Iran regime is desperately needed to Prop up their  economy and ransom them to their respective countries for handsome amounts. What led us here? The failed policy aimed at taming the nefarious activities of the Iranian regime through concessions and appeasement. America was forced  for the release of Saeed Abedini and the other hostages to give ransom $ 400 million. In fact, recent months have seen a significant increase in the Iranian regime's actions against foreigners visiting the country. Since the January prisoner swap, at least six dual-national Iranians have been arrested, and others have received heavy prison sentences from the Iranian regime's judiciary under bogus charges of acting against the state. 
Iranian officials are making multi-million dollar demands for the release of some of the prisoners, and according to sources close to the Iranian regime, demands might be raised to as much as $2 billion. 
This is further proof that January's ransom has only whetted the appetite of the mullahs for more. To their benefit, foreign nationals have a voice abroad that will offer them a measure of reprieve and immunity from the horrors that have become the notorious hallmark of Iran's prisons. Unfortunately, the same can't be said for the tens of thousands political prisoners executed without fair trials, and the thousands of inmates who continue to linger in Iran's dungeons, awaiting their fate under conditions that a recent United Nations report describes as deeply troubling. The next U.S. president will have a chance to adopt the right approach and show some backbone and determination. In the meantime, lives will be hanging in the balance.