Statements by Secretary of State Hillary Clinton brought a harsh response from North Korea.  Clinton urged Asian nations to impose new, stronger sanctions against North Korea in the wake of that country's sinking of a South Korean warship in March.  The North countered with a statement that such a move would draw a "physical response" against a joint U.S.-South Korea military drill.  The United States wants to curb North Korea's nuclear development because any nation with nuclear capabilities is a threat to its global plans.  Several other countries, such as Myanmar (formerly Burma), see nuclear power as a deterrent from America invading them and seeing a repeat of the Iraq and Afghanistan takeover attempts