The group of men arrived at the Central Bank of Iraq before sunrise on March 18, 2003.Hours before the bank officially opened for the day, Qusay Hussein—the younger of Iraqi President Saddam Hussein’s two sons—presented a signed letter from his father. The letter authorized a withdrawal so large that it required three large trucks to take it away.Also Read: Operation Tapeworm: How the US Army’s most elite hunted down Saddam’s sonsAs Qusay and Sa…