Currencies

Features

Power-sucking Bitcoin 'mines' spark backlash

Bitcoin "miners" who use rows of computers whirring at the same time to produce virtual currencies began taking root along New York's northern border a couple of years ago to tap into some of the nation's cheapest hydroelectric power, offering an air of Silicon Valley sophistication to this often-snowy region.

Markets

A willingness to fix the euro's flaws is fading fast

When Angela Merkel was re-elected as Germany's leader in March, the way looked open for European nations to finally patch the remaining cracks in the euro — the structural flaws that threatened to break apart the shared currency in 2010-12.