Gary Samore, a top Obama administration national security official, warned of new sanctions if North Korea conducted a third round of nuclear tests on Monday, as reports surfaced that North Korea has miniaturized its nuclear warheads so they can be delivered by ballistic missile.
North Korea’s last round of tests, conducted in May 2009, appear to have included a “super-EMP” weapon, capable of emitting enough gamma rays to disable the electric power grid across most of the lower 48 states, says Dr. Peter Vincent Pry, a former CIA nuclear weapons analyst and president of EMPact America, a citizens lobbying group.
