katie butler author of "knocking on heaven's door." want to begin with you, tony, how is aide in dieing defined? >> it's a specific end of life option among many options available in many states that mentally competent terminally ill patients so they can get a prescription for medication that will help them end their dieing process should that process become unbearable or before they lose ontonomy. >> do they have to be reviewed by doctors that all agree they have less than six months to live and they're all in final critical stages. >> it doesn't always mean you have a terminal prognosis. what we're looking at here is when you get to the point in your illness that you're really entering the final stages it is typically about the same time people would be referred to hospice. do they want medication to help end their dieing process if necessary. >> so there is five states where this is legal, are you working with other states to legalize death with dignity laws. >> yes the first was passed in oregon. it was titled death with dignity la

katy zachry has a look. >> in montgomery county there's debris right at butler pike that's partially blocking the roadway.e aware of that if you're on 309. if you're headed further north, 78 and 22 look great as well. in west philadelphia along lan costar avenue at 40th street there is a fire. there was a fire so there's activity. you're encouraged to avoid that area. the route 10 trolley is shuttle bussing from 33rd and market to the 63rd. >>> we are not alone when it come comes to dealing with the cold weather kicking off the new year. a deep freeze continues on the west coast. people in las vegas felt the chill this week as temperatures dropped to near freezing. take a look at that. they are playing with some stuff that those kids probably don't see very often. they saw some of the snow. the cold front is expected to continue this morning in southern california. with that snow in arizona, they are getting our share. i'm fine with it. >> they are going to warm up sooner rather than later. we are going to see a warm-up of our own before things get cold once again. we're looking at a now dark view of boat