FILE - In this Thursday, Sept. 29, 2016, file photo, a woman holds up her cell phone before a rally with then presidential candidate Donald Trump in Bedford, N.H. President-elect Trump tweeted Tuesday that North Korea won’t develop a nuclear weapon capable of reaching parts of the United States, but it’s possible it already has. After five atomic test explosions and a rising number of ballistic missile test launches, many experts believe that North Korea can arm short- and mid-range missiles with warheads that put Guam at risk. (AP Photo/John Locher, File)