South Korea can now produce missiles that can reach all of North Korea as part of a new deal with Washington that's a response to the North's own growing weapons stockpile. There were restrictions put on their missile production by Washington to try and deter an arms race between the North and South. "The restriction has made South Korea's missile capability inferior to that of rival North Korea, and some key military installations in the North have been out of South Korea's missile range," the Associated Press explains. South Korea is now allowed to produce missiles that can reach all of North Korea so long as the "payload," aka how much power is behind the bomb, doesn't go over a certain weight limit. Alternatively, they can make missiles that can travel a shorter distance but can carry a stronger payload. Reuters points out the deal may anger China, Japan and Russia, "parts of which would be within range of the new missiles."