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Kayleigh two News Conferences on the massacre in maine wrapping up last hour. Law enforcement intensify the manhunt for 40yearold robert card who they say murdered people and injured more. He should be considered armed and dangerous. He is Firearm Instructor trained by the military and recent history being treated for Mental Health. Entire county on lockdown, dozens of schools closed and residents have been told to Shelter In Place. Im kayleigh mcenany, this is outnumbered. Here with my cohost, Emily Compagno and harris faulkner, also joining us, fox news contributor, marie harf and marc thies...

Pennsylvania senator bob casey is calling for action to fully implement a computerized system to prevent tragedies like the train derailment in philadelphia. it's called positive train control, or ptc. it's a sophisticated system of sensors that can help prevent collisions and stop trains from going through red signals if the operator is for example distracted. here's senator casey on "morning joe." >> i do think, though, when the ntsb says specifically or definitively that the so-called positive train control system can help i think we have to take that seriously and act on that. we know it's...

Two years ago a metro north train derailed in new york after going into a curve at nearly three times the speed limit. right after the "today" show's jeff rosen showed us technology could have prevented it from happening. >> state-of-the-art collision avoidance technology. >> it's called positive train control, or ptc. a sophisticated system of sensors on the rails and inside the locomotive even using satellites to track the train's movements and prevent many accidents caused by operator error. if the train is going too fast the computer warns the crew. if the engineer doesn't slow down, the c...

Herzman. nice to have you with me this morning. >> good to be with you. >> 35 states as well as the district of columbia ban texting while driving and this is a more sweeping proposal and explain how all of this is going to be enforced if it does indeed become law? >> our recommendation is to the 50 states and the district of columbia, and we are looking for them to set good laws and have good education and good enforcement, and we know it can be effective in changing the behavior like we have seen in drunk driving and seat belt use and child restraints. >> so you have called the multivehicle ...