Last year the government had decided that the witness protection program needed to completely change the way that it worked in order to make it safer for the people they had to protect.
They tried a variety of new and different idea, but one stood out more than the other. Using technology developed from the spaceship that crashed at Roswell the government had found a way completely alter a persons body as well as make small changes to reality in a small geographical area.
Using this they developed a system where they could alter the body of a person that needs protecting and inserting them into a family with a gap in, for example a family with an absent father could gain one for the duration of the protection,, or a family could gain an extra son, not that the family would know due to the reality change. That made sure no one knew about the protection program and that it was as secure as possible.
In particular dangerous scenarios and where the need arose a person under protection could change once a week and end up in a different family to make them even safer.
Someone has just witnessed a crime and have been put under witness protection they are: