Blinken says decisions like Iran prisoner swap are "hard" ones to make, amid concerns it encourages hostage-taking

U.S. Secretary of State Antony Blinken addressed concerns Wednesday that the U.S. deal to release five Iranians and agree to the release of nearly $6 billion in frozen Iranian assets — in exchange for the release of five Americans who were detained in Iran — encourages hostage-taking among hostile nations. 

"These are hard decisions, hard decisions for the president to make," Blinken, who is currently in New York for the U.N. General Assembly, told "CBS Mornings." 

But Blinken said over 30 Americans who were unjustly detained worldwide are now home as a result of those decisions.