"We let him work on it a bit before we recognized his deep breaths as he was getting stressed and starting to tear up," Patrick and Kitty told Newsweek.

In both cases of plans targeting Sikh separatists, suspicions of New Delhi’s involvement have arisen. That has put India in a tight diplomatic position. By Anupreeta Das Reporting from New Delhi ...

Fundamental problems about multiplication — about, say, how numbers factor into primes — suddenly become much deeper and more challenging as soon as addition enters the picture. One of math’s biggest ...