In hour one of Here & Now’s March 28, 2018 full broadcast, we learn more about new efforts to track opioid use through wastewater from the deputy town manager of Cary, North Carolina, which is piloting the technology. Also, as the #deletefacebook hashtag continues to trend in the wake of the Cambridge Analytica data scandal, we meet writer Ezinne Ukoha, who stopped using Facebook in 2016 and says she has no regrets. And No. 11 seed Loyola University Chicago has become this season’s March Madness Cinderella story. Historians Ed Ayers and Brian Balogh join us to look back at America’s longstanding affinity for the underdog.