The president's New York Times interview stirred speculation he may consider firing Mueller for investigating Trump’s business dealings as part of the Russia probe. But Trump can’t fire Mueller directly. If he tried, he could set off a chain-reaction of events that would throw the Justice Department into upheaval.

Elon Musk claims he won approval to build the world’s biggest tunnel. The Tesla founder tweeted that he had received “verbal” government approval to build the tunnel for an ultra-high-speed train line to connect New York to Washington. The train, known as a hyperloop, would make the 220 mile connection in 29 minutes, Musk said.

Cold brew might save the coffee market. Surging sales of the trendy summertime drink, which uses more than twice the amount of ground beans as hot coffee, have companies like Starbucks expanding offerings and roasters selling more beans at a time when demand traditionally slackens.
 

The battle for the moon begins. An increasing number of nations and companies are planning missions to the celestial body, which is rich with helium and other resources. There are fears about the impacts of numerous lunar landings or a massive mining operation. One group says the UN needs to start making more rules before it’s too late.

How to fix Social Security. Retirement expert Alicia Munnell says the program is not going bankrupt and can be fixed. The economist lays out the stark choices Americans face, and the solutions for rejuvenating the mother of all safety nets by two diametrically opposed pieces of legislation.

Why Yellen’s Fed cares about America’s opioid epidemic. The deepening crisis has caught the central bank’s attention. If addiction is rendering people unemployable, it could help explain why a historically low portion of the prime-age population is working.

Little-known Sinclair Broadcast Group is the nation’s largest owner of broadcast TV stations. The conservative broadcaster is positioned to flip a switch and turn its 173 stations’ newscasts – currently delivering bulletins on weather and local affairs – into a cohesive network pushing a Fox News-esque worldview of outrage and conflict. But small-time management and avoidable mistakes keep getting in the way of big ambitions.