Account-1: @BookTV (Twitter)Account-2: @CatoInstituteDate: Saturday, April 16, 2016Body: @ 7:30p ET a panel on the cost & efficacy of federal & local #counterterrorism efforts @CatoInstitute @OUPAcademicLink: https://twitter.com/booktv/status/721461996831514624?refsrc=email&s=11Social Action: featured in a tweet