What was she thinking?

One question I've gotten a lot regarding adoption is "Why does it take so long?"  Read this article for one reason it takes so long.  Agencies try to weed out whackos like that woman.  So the mom basically gets overwhelmed with the child and sends him on a plane back to Russia with no guardian.  He was carrying letter stating that she no longer wished to parent him.  The article doesn't state exactly how hold the child was when he was adopted in September, but he is currently 7.  So he was either 6 or 7 years old at the time he was adopted.  Children adopted at that age need more attention and maybe even therapy than say, an infant would need.  Was she not educated about that by her agency before she was approved to adopt a 6/7 year old child?  Did she seek professional post-placement assistance?  Did she ever take her son to see a therapist, psychologist, or counselor before deciding to send him back to Russia?  However desperate she felt, is doesn't excuse the fact that she abandoned her child.  It looks like she may have wrecked other families plans too.  Russia has decided to halt all pending US adoptions, and I can't blame them for doing so when an American has done such careless foolish things.  I'm interested to see what will become of this situation.