North Korea appears to be expanding a missile base in a remote, mountainous part of the country, according to new commercial satellite imagery studied by independent researchers.
The base, located near the Chinese border, is believed to be capable of housing long-range missiles that could, in theory, hit the United States. Researchers say they see clear signs that the base is being upgraded.
The base would very likely be used to house longer-range missiles, such as this Hwasong-12, which is capable of reaching Guam.
Read more at NPR.