North Korea has "reached the target stage, where the nation and people's safety is reliably secured," said the country's leader, Kim Jong Un.
Alyne J. Lawrence Barrick was last seen at 2:30 p.m. on April 12, 1996 near Mammoth Cave National Park in Kentucky walking her dog. Her family has not heard from her since.
Greitens' charge piles on political woes for the incumbent governor who is already under pressure for an alleged extramarital affair.
U.S. negotiators from the Clinton and George W. Bush administrations have been fooled before by North Korean promises before.
Alpha Epsilon Pi is under investigation after "multiple credible reports" alleging underage drinking and sexual misconduct, the university says.