Puerto Rico teetered into insolvency as the chronically troubled U.S. territory of 3.4 million citizens buckled under its everincreasing debt, which stands at $73 billion. The process that Puerto Rico has undertaken is a prelude to bankruptcy, but in this case, it is tailored for governments. Given the size of the debt, it would be the largest such insolvency in U.S. history, far outstripping Detroit’s $18 billion restructuring in 2013. U.S. Chief Justice John G. Roberts Jr. appointed a federal judge based in Manhattan to oversee Puerto Rico’s bankruptcy case. Apple says it intends to bolster the U.S. manufacturing sector by creating a $1 billion “advanced manufacturing fund” — with some of that initial money going toward a company the tech giant is prepared to partner with, chief executive Tim Cook said. Hulu said its new TV streaming service will include content from NBCUniversal’s networks. With its deal with Comcast, Hulu’s live TV package will include the four major broadcast networks, cable news channels and its streaming library for less than $40 a month, it said. Airbnb and San Francisco settled a lawsuit over a local ordinance that had forbidden the home-rental company to take bookings from hosts who have not registered their homes. Sterling Jewelers settled claims by U.S. authorities that it discriminated against female employees in pay and promotions. Volkswagen resumed selling diesel cars in the United States last month, and they accounted for nearly 12 percent of its April sales, the automaker said. VW was barred by U.S. authorities from selling the cars after it admitted to using secret software to exceed emission limits.