The Pyeongchang Winter Games will be held from February 9-25 only 80 kilometres (50 miles) from the heavily guarded border with the nuclear-armed North.
The German foreign ministry issued a statement saying the security question and the possibility of keeping the German team at home would be addressed "in good time".
South Korean football legend Cha Bum-kun and reigning Olympic fencing champion Park Sang-young were unveiled as torch runners for the 2018 PyeongChang Winter Olympics on Wednesday.
Russian Federation said security was each host country's responsibility and China's foreign ministry said it was not aware of any plans for the its Olympic team to not attend.
Tensions in the region have escalated since North Korea conducted its sixth and largest nuclear test on September 3, prompting global condemnation.
Kim has warned that North Korea would consider the "highest level of hard-line countermeasures in history" against America in response to Trump's threat to destroy them.
"Just heard Foreign Minister of North Korea speak at U.N. If he echoes thoughts of Little Rocket Man, they won't be around much longer!", President Trump tweeted. As the crisis has sent jitters across the globe, France was the first to publicly cast doubt over its participation.
According to AFP news agency, during a media interview Thursday, France's Minister of Sports Laura Flessel said that "if security can not be assured, the French Olympics team will stay at home". "We will not put our team in danger".
Blackmun also talks about the USOC's plans to help Caribbean countries affected by recent hurricanes and the USOC's involvement with the revitalized PanamSports Organization. The head of the 2018 Pyeongchang Winter Olympics Lee Hee-Beom said earlier this month there was no "plan B" to move the Games and next year's event would have "perfect security" despite the nuclear tensions.
The last Winter Olympics in the United States were in Salt Lake City in 2002. "So I don't see any big problem for the Pyeongchang Olympic Games". While no North Korean athletes have yet qualified for PyeongChang, South Korea has repeatedly said the doors are open for the North. "There are obviously a myriad of issues, a lot of them commercial and whether that affects our ability (to land sponsors), hopefully we've sold out of our inventory by 2026, because if we're still selling in 2026 then like there's other problems".