We will get to the gun control debate in the moment but we begin with developing news and pittsburg as a shelter place has been lifted after a strong order was detected at a nearby railyard. People near of north parkside drive near 17th street and railroad are now allowed to go outside. Fire Officials Say someone reported an odor coming from two cards tank cars. Has been is on the same. Officials are asking people nearby to stay indoors to be safe and sirens were sounded and that caused some anxiety and concern in the neighborhood. That shelter in place has been lifted. To capital for the senate is considering a measure for background checks. Some lawmakers are questioning other proposals including the presence call to give guns to teachers. Caroline shively live in washington with the latest. Reporter it has been nearly 2 weeks since the fatal Florida School shooting sparked the student advocacy effort for gun control like never before. As students prepare to return to school in the m