beginning down a slippery slope. when you have a blood relation to a child, that's easy to prove or if you have a child who is in your care through the foster system, that's also an easy to prove, very straightforward relationship. changing the definition here and not in other areas going to create a real complicated administration burden. steve: that's exactly what it sounds like. because who is going to have to keep track of that? >> well, the irs would attempt to do this but i think this whole discussion shows the limitation of government safety nets. you know, we can't expect the federal government to keep track of where every child in america is at all times. i do want to stress that the children who are in nontraditional living arrangements, especially if they're living with someone who is not a blood relation, these are among the most vulnerable children in the country. i do hope lawmakers look for other ways through the social safety net and other programs to ensure that these children are being looked after, being put in a secure home environment. i don't think expanding the child tax credit in this way is the best way to address their