US has a self-imposed moratorium on assassinating leaders and other individuals during times of peace. Basically, while this would be great for a lot of people in the world, it would break US law and set a bad precedent as to who can and cannot be taken out.
Why don't you(the US) just send a spy in nk kill that fatty stupid a-hole and be done with it??? (like you should have done with saddam hussen...)
Sorry if im off topic but, i have to know
They did try to kill Saddam, and killed some of his doubles and family members in the process. He had to spend a lot of money in staying alive...
They assassinate people in Pakistan all the time though - what do you think the drones (and seals) are doing?! As well as many, many other countries - they've been caught out asking governments to publicly take responsibility for their killings, and now have the legal power to even kill their own citizens that are overseas. They're also not afraid of initiating a coup so that a leader can be killed, like Allende in Chile's 9/11, or Lybia recently... Closer to home, there's Chavez, Castro, etc, if you care to look past denials / entertain possibilities.
But most importantly, the US is still formally at war with NK, so they'd be justified in almost any action.