 The heat of summer is definitely here, we all know that by now, and often that means a rise in crime. The people involved in keeping crime at bay in D.C. have heard from the mayor at what's now called Safe Summer Training Sessions. WTOP's Kate Bryan has our story. D.C. Mayor Muriel Bowser was blunt in talking about making sure this summer doesn't look like last year. Bowser noted that the Surgeon General recently called gun violence a public health crisis.