Sissel McCarthySeptember 07, 2022News Silo, Partisanship, Echo Chambers, Political Polarization, Sissel McCarthy The Growing Threat of News Silos A new study underscores how effective cable news has been at stoking political polarization. Sissel McCarthySeptember 07, 2022News Silo, Partisanship, Echo Chambers, Political Polarization, Sissel McCarthy