What authorities are doing in response to Austin serial bombings

What authorities are doing in response to Austin serial bombings  CNN 'I'm Ready To Call 911': Austin On Edge With 'Serial Bomber' At Large  NPR "He's one step ahead": Officials frustrated after latest Austin explosion  CBS News Allhands: What makes the Austin bombings so terrifying? It could happen to any of us  AZCentral.comFull coverage