Type in “buy contact lenses online” into Google and what result do you get? Website after website, including those of giant retailers like Wal-Mart, asking you to click their link so you can buy contacts from them. This wasn’t always…

All political leaders have their bad patches. Ronald Reagan, for example, wasn’t exactly the most popular politician in America in 1982. But few politicians have experienced as sharp a reversal of fortune as France’s embattled Socialist president, François Hollande. May…