Wolford wins NCAA title in swimming

Fifth-year student Kyle Wolford won the national title in the 200 backstroke with a time of 1:44.15 March 22 in Greensboro, N.C. He is the 27th student-athlete to win an individual national title.

How Alexa is listening

image of a circular smart speaker
Umar Iqbal, a computer security expert from Washington University, explains how smart speakers process user data.