After months of threats, speculation and rumors, U.S. President Donald Trump has finally pulled the plug on the nuclear deal with Iran. On May 8, he announced the U.S. "withdrawal" from the agreement — known as the Joint Comprehensive Plan of Action (JCPOA) — over concerns that the deal was not comprehensive enough and did not target Iran's destabilizing regional activities. The move is a significant reversal of U.S. policy on Iran and raises a number of questions about a situation that will require close monitoring in the months to come. All Sanctions Coming Back In his announcement, Trump outlined a plan to reimpose all suspended primary and secondary sanctions on strategic sectors of Iran's economy, including the vital oil and financial sectors. The plan also includes placing a number of people and entities back on the Specially Designated Nationals and Blocked Persons List.