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The man was forced to the ground by officers and was face-down, at the site of numerous demonstrations over police brutality and the death of Breonna Taylor.

Police around the country are on alert after the police ambush tragedy in Dallas. Five officers were killed by snipers. Kris Van Cleave reports with what departments are doing to protect their own.

The presumptive presidential nominees are reacting to Thursday night's attack on police in Dallas. Chip Reid reports from Scranton, Pennsylvania, where Hillary Clinton had scheduled a rally with Vice President Joe Biden. Both campaigns have canceled or

President Obama is condemning the deadly police massacre in Dallas.

Former Dallas police officer and mass shootings expert John Matthews joins CBSN to discuss the Dallas police shooting.

President Obama condemned the Thursday night ambush of the Dallas police officers. He is in Warsaw, Poland for two days of meetings with European Union and NATO leaders. Margaret Brennan, who is traveling with the president, reports.