Tiffani Harper’s online homework seemed to have a mind of its own. It knew that she learned best by watching videos and detected what topics she struggled to grasp.
WASHINGTON — Our political system is not accustomed to the kind of battle that is going on now. President Obama has been slow to adjust to it. The voters are understandably mystified and frustrated by it. In the meantime, the economy sits on the edge between stagnation and something worse. The president’s speech to Congress […]