Like a petulant child who doesn’t get its way, North Korea likes to throw tantrums. A few days ago the rogue state reminded the world how troublesome it is by launching several short-range missiles in the first weapons tests since President Joe Biden took office, sending a sharp message to the new US administration. But behind the aggression, dictator Kim Jong-un is in serious trouble as his regime teeters on bankruptcy. Tom Steinfort, one of the few western journalists to have reported from the hermit kingdom on multiple occasions, says North Korea desperately needs cash and is willing to do...