Welcome to a special edition of the Edge. Many of us are looking for guidance on how to move forward after the tragedies last week: The cowardly ambush that killed five police officers in Dallas, and the police shootings in the days before that killed two black men, Philando Castile in St. Paul, Minnesota, and Alton Sterling in Baton Rouge, Louisiana. 

President Obama delivers remarks at an interfaith memorial service at the Morton H. Meyerson Symphony Center with the families of the fallen police officers and members of the Dallas community.

Updated: NOWCastSA has created an interactive graphic that lets you compare regulations on Transportation Network Companies (TNCs), such as Uber and Lyft in San Antonio, Houston, Austin and Dallas. This updated graphic shows how San Antonio changed its regulations after Uber and Lyft complained the rules were too strict here compared to other cities.