Madurable: impasse in Venezuela

International sanctions have crimped the regime, and the country’s people. Yet President Nicolás Maduro is still in charge. The only way out is for him to share power, not relinquish it. The “internet of things” will eventually comprise perhaps a trillion connected devices—each a tempting target for hackers. And, how cities came to be, and why they’ve been such a draw through the millennia.