by By Becca Milfeld with Kang Jin-kyu in Seoul Agence France Presse WASHINGTON, United States (AFP) — US President Joe Biden warned North Korea Thursday that the United States will “respond accordingly” if it escalates its weapons testing, after Pyongyang fired two suspected ballistic missiles into the sea in its first substantive provocation of the new US administration. The nuclear-armed North has a long history of using weapons tests to ramp up tensions, […]