Someone calls you at work and says, “Don’t tell anyone, but…” If you are like most people, there are one or two people you will pass it along to with the same admonishment.

Perfect randomness sounds simple, until you try to make it. A die can be polished, balanced and rolled thousands of times.

The roots of Russia's invasion of Ukraine go back decades and run deep. The current conflict is more than one country fighting to take over another; it is — in the words of one U.S. official — a shift ...