We discussed how the SS gets involved in missing child cases about 23 threads ago, it is not uncommon, and does not have to mean that there is any suspicion of the child being taken out of the country or a drug connection or anything else. It is just something they do. Many people here posted the info about this...
While I don't think Billie is doing her own image much good on NG, at least she is on there, doing what may be her best to keep Hailey in the news, although the show spends too much time on the sensational aspects of the case(s) and not enough on focusing on Hailey and what/where/how she may have gone missing, if SA is not the culprit. We've heard very little about Hailey's internet activities (plenty about SA's...) as far as who monitered her, if anyone, what sites she looked at often, whether or not there really was a family fight of some kind in late December...things that could help determine H's state of mind, etc. Clint is out looking when he hears of possible sightings, which means he is entertaining, at least, the idea that she took off on her own.