the most critical thing, is to get to the victims, get to the remains of the people that are underneath that bridge. this is a tragedy that we do not want to reoccur anywhere in the united states. >> all right. joining me now is mark ash, a trance pro chief executive officer. his company does safety work nationally and florida and writes about u.s. infrastructure in his book "saving america." >>what do you think went wrong here? >> as a florida resident, it's such a tragedy. we've had two in the last month. the american people expect to be able to cross bridges. and it's just this absolute failure of government to be able to deliver projects that are safe. one of the key elements is the testing phase.