Snap brings its heat map feature out of the app. Will any news publishers want to use it?

Snap — née Snapchat — first rolled out its heat map feature last June. The map algorithmically surfaced Snap stories around events like sports and concerts; Snap editorial staff also curated stories around other events, from New York Fashion Week to real-time coverage of unfolding tragedies like last fall’s Las Vegas mass shooting and the Manhattan terrorist...