Still there will be those who blame it on the exposure of kids to 'unclean' materials in TV, games and especially the Internet. Also, as my own parents were/are doing stand-by duty for Child Services, we often have kids from screwed up families here. The biggest we had was a 15-year old, about 7 months pregnant that was kicked out by her own mother. So I can safely say I've seen quite a few things. This though breaks any record.
I think it's not so much a sign of modern times and more a case of crappy parenthood.