The use of live-streaming apps such as Periscope and Meerkat has helped journalists provide unfiltered, live as-it-happens moments for viewers, according to some proponents, though others claim such technology compromises the quality and accuracy of news. Periscope, which was bought by Twitter Inc. in March, is among the most popular live-streaming apps journalists have been using. Users download the app on smartphones, log in and begin a live broadcast of whatever they’re doing. For news outlets such as CBC/Radio-Canada and Shaw Communications Inc.’s Global TV, the app...