Like clockwork, North Korea leader Kim Jong Un threatened to retaliate with a "physical response" once the location of America's most advanced missile defense system in South Korea was decided — well it's been decided and now the Hermit Kingdom is acting up. After a series of defiant North Korean nuclear weapons tests, the Pentagon agreed to arm South Korea with a THAAD battery. On Tuesday, the rogue nation fired three ballistic missiles, equipped with a range (between 300 and 360 miles) capable of reaching all of South Korea.  And the latest show of force took form in a ballistic missile test simulating a strike on South Korean ports and airfields, which are heavily operated by US military forces.  ...