Explained: How an impoverished North Korea pays for its endless missile tests

Seoul: North Korea's recent barrage of missile tests, including Wednesday's record of at least 23 launches, is raising an important question about its weapons program: How does the impoverished country pay for the seemingly endless tests? While some experts say each North Korean launch could cost $2 million to $10 million, others say there is no way to estimate accurately given the North's extremely secretive nature. They say North Korea likely manufactures weapons at a much cheaper cost than other countries because of free labor and possible clandestine Chinese and Russian support. Whichever is correct, there are no signs that…