North Korea Claims to Have Mini Nuke Warhead

North Korea says it has miniaturized nuclear warheads so that they can be placed on missiles.
If true, that would give North Korea the capability of launching nuclear attacks against other countries.
The communist regime claims it can strike the United States, although some experts question that.
The North also claims it tested its first hydrogen bomb in early January.
That was followed last month by the launch of a rocket that put a satellite into orbit. The launch violated U.N. resolutions because it employs dual-use technology that could also be applied to long-range ballistic missiles. North Korea's development of smaller nuclear weapons and long-range missiles has long been a matter of concern and could shake up the security balance in Asia.