A dismantling "ceremony" will be held and journalists from the U.S., South Korea and elsewhere will be invited, Pyongyang said.
"The president was there to meet the freed men—along with Melania, who is hoping to be freed next," Colbert said.
Secretary of State Mike Pompeo offered North Korea's top diplomat "the opportunities your people so richly deserve."
The secretary of state returned to North Korea to negotiate the American prisoners' release.
Pyongyang has asked Seoul to open a new international flight route.
North Korea is an ally of Syria, Cuba and other fellow enemies of U.S. foreign policy, but peace may be on the horizon.
The U.S. Forces Korea hold regular military drills with the South Korean army.
Kim and Trump are now preparing for a historic summit of their own. A time and a place for the that summit have not yet been decided, but it is expected that the meeting will take place in May or early June.
"Numerous countries are being considered for the MEETING, but would Peace House/Freedom House, on the Border of North & South Korea, be a more Representative, Important and Lasting site than a third party country?" Trump tweeted.
Kim Jong Un said it was painful to see the clocks in the summit room last week showing different times for the two countries.
"I think it's more than fair to say that the combination of the president's unpredictability and indeed, his bellicosity had something to do with the North Koreans deciding to come to the table," Schiff said.
The new secretary of state said he conveyed a clear message during his meeting with the North Korean leader.
North Korean television displayed patriotic images and mountains.
President Donald Trump was quick to take credit for the historic summit.
Kim's younger sister was the only woman at at the summit table and assisted her brother by handing him a pen, holding flowers and taking notes.
Could this be the beginning of a reunited Korea?
Kim Jong Un and Moon Jae-In looked triumphant as they shared a hug and signed the Panmunjom Declaration.
Kim Jong Un and his sister Kim Yo Jong crossed the border line on Friday morning to hold talks with South Korean President Moon Jae-in.