Now on offer at University of Hawaii, Nuclear War 101: How to Start Worrying and Fear the Bomb.
In Washington, a US official said that there had been indications that North Korea could be preparing for a missile test on or around October 10, the anniversary of the founding of the ruling Korean Workers Party and a day after the Columbus Day holiday in the United States.
It adds that the university follows the Hawaii Emergency Management Agency siren system and the agency's instructions for "sheltering-in-place".
Tensions have risen in recent weeks over North Korea's nuclear weapons and missile programs as Pyongyang has test-fired several missiles and conducted what it said was a test explosion of a hydrogen bomb as it advances toward its goal of developing a nuclear-tipped missile capable of hitting the US mainland.
The EU will introduce a ban on the sale of natural gas liquids to the DPRK and on the importation of its textiles, the Council of the EU said in a statement.
Trump expected to tap Kirstjen Nielsen to lead Department of Homeland Security
Nielsen is a cybersecurity expert but joined the White House to help Kelly when he became Trump's chief of staff in July. Nielsen had served as Kelly's deputy at DHS and followed him to the White House when he replaced Priebus.
The university's communications director, Dan Meisenzahl, claimed he was responsible for the email "right down to the subject line". He went on to say that although the email's subject line wasn't as measured as it probably coulda, woulda, shoulda been, "we also wanted to provide the best information that is now out there". He might also have put into all caps: "NO REASON FOR ALARM" and other language to the effect of "Don't take this the wrong way".
They also ban imports of North Korean textiles to the European Union and prohibit European Union countries from providing work authorizations for North Korean nationals, the statement also said.
Despite the national attention, the email didn't generate a large number of complaints from students or faculty, Meisenzahl said.
Legislators on the island met in September to discuss how to prepare residents for a potential nuclear attack, Honolulu Civil Beat reported.
The informational message comes amid rising tensions with North Korea, and as the president indicates that diplomatic efforts may have stalled.