some of the newer buildings have the equivalent of a semi firewall because of the new construction mandates. these older apartments don't have that. we still, dana, don't know the cause of the fire or how it started. but we do know it is very cold in philadelphia. this apparently is government housing. in a lot of these types of cases you have bad electrical, space heaters in there and potentially sometimes you have fireplaces and things just the end to go awry. we haven't gotten information on that yet. >> dana: one of the things that crossed the wire is that the smoke detectors in the building, trace, were not operating. that could have led to more people being put into this dangerous situation again. at least 13 people killed. at least seven of those were children in this row house fire in the early morning hours of a tough start to the year for