we spoke to the spokeswoman out there, jennifer mccord who had this to say. >> today we have our crews out pretreating roadways. they're putting down liquid magnesium chloride on interstates and salt brine on other major roadways. tonight we'll be bringing in 600 trucks and they'll treat the road tonight. the biggest concern tonight is ice of. reporter: the big concern, ice, clark county also all hands on deck with crews also there working to get the salt and brine on those roads to make sure they're safe for motorists. now, folks, just because crews are out there doing this that doesn't mean it's a good idea to drive tonight. what we're expecting tonight is very dangerous, so you don't need to be driving on the roads. it's better to probably stay home. back to you. >>> a chaotic scene in new carrollton today where a neighborhood was turned upside down following a home invasion. charles carroll middle school was locked down during the search. one person was arrested. our scott broom was the first reporter on the scene. reporter: i'm scott broom in new carrollton where police have captu