well the truth.....to be honest you cant handle the truth so I'll scare you anyways
cps (child protective sevices) aka dcf is the one branch of government that does "NOT" need a warrent to come into your home, where as even the highest branches of the FBI or your local police need a warrent to invade your home. Yep thats right you could have murderd half a dozen people and they would need a warent to investigate where as you may have done absolutly nothing wrong at all and your nieghbors just don't like you so they call dcf which infact can barge into your house at any given time with out a warrent if someone has tipped them off.
There was an artical in the local paper about how dcf took two children away, what had actually happened was the mother left the father incharge of babysitting while she went to work 3d shift the father fell asleep and the 2 kids in dippers were able to sneak outside. When the mother got home she went to check on her kids who were not asleep in bed, she noticed the back door was open and had to chase them around the house. At 5am the nieghbor is getting ready for work and asumes the mother is outside playing hide and go seek with her kids that aren't clothed or have shoes on except for dippers, and calls dcf.....guess what it says in the paper? How bad the mother is ect.
If you ask me, they can take your child at any given time if they want to, remember it's their job to look for thing that could "possibly" endanger your child but "NOT ACTUALLY" endanger them.
Examples and un-organized home, not having a clean record, being on any kind of state assitance (they have a field day w/ that one) or even "rumored" to have beaten your kids, the second that phone gets dialed your screwed. I'm pretty sure they get a commision on taking kids from their familys.
To answer the rest of your question, NO they are not always put into good care and YES you should be concerned. In texas more than a dozen kids had been taken from there homes due to bad conditioning but what happened to them next was about the worst of it. They were put into state living (orphanage) not a foster care where there for they are government property, and were subjected to random testing of vaccines, kind of like lab rats. Also when I was 18months there was a story on the news about a boy that was the same age as I was (my mother brought this up ALOT) the mom of the boy had a restraining order on the father because of abuse ect. He had to go to parenting classes and do a whole bunch of legal things before ever being around his child and for 6months he had to have some one present when visiting his kid. Well DCF were the ones to say in court he was safe to be around because he had gone through classes ect. The mother claimed "NO" he's not, and that he hadn't changed....the boy saw his father I think 3 visits alone before the 4th visit where the boy was murdered......and it could have been prvented if DCF had listened to the mother. This kind of stuff happens ALL the time, and they try and keep it out of the media so you can't use it against them.