New round of US sanctions against Iran

http://www.youtube.com/watch?v=y5hvSwmCplE
A new round of US unilateral sanctions came into effect on July 1st, planned to affect the Iranian economy hugely.
The sanctions target the barter of Iran's currency, the Rial, the country's auto sector, shipbuilding, and petroleum industry.
New tightening sanctions are being imposed on Iranian nation while the country is dealing with an inflation rate of over 31%.
Many political analysts believed that the United States was expected not to put into effect these new sanctions while a moderate candidate won the June presidential election.
They had predicted that the US administration would defer their decision on the new sets of economic pressures. To their chagrin, now many countries as well as international companies have to choose between the US and Iran.