'We Have Heavy Hearts in the City of Dallas Right Now' Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A Dallas police officer carrying a automatic weapon walks with citizens as they arrive for work near the shooting scene in Dallas. ( Paul Moseley/Fort Worth Star-Telegram/TNS via Getty Images / Getty ) Produced by GBH, PRX and WNYC Studios