U.S. Threatens Iran While Trying to Talk It Down

President Trump warned June 21 that America would strike Iran hard if it doesn't control Hezbollah, a militant group active in Lebanon. That same day, Vice President Vance met with Iranian officials in Switzerland to discuss reducing conflict. The U.S. is using both threats and talks, though Iran has heard warnings like this before. The real question: does Iran actually believe Trump will follow through, or will it wait out another round of negotiations?