North Korea's nuclear experiment is being now, and America's nuclear submarine San Fransisco came again in east sea. It is 19 years after when Il-seong, Kim is dead and North Korea was in danger because of nuclear experiment in 1994.

When North Korea started third nuclear experiment, America, Japan, and even China think danger and shoot the mysail. Now, this three countries are working hard to stop nuclear experiment.

San Fransisco is nuclear submarine, and it is the best level of America's submarine. It's other name is SSN-711. It has tomahoke mysail that can fly 2500km. It measures 110.3m by 10.3m. This submarine changes the fuel at 3 years.

America's goverment said "We can make good idea of any attack of North Korea". From monday, America and Korea will see North Korea's moving and nuclear experiment.