Think GPS child tracking devices...
http://themaddiecasefiles.com/topic7227.html
More than two months after Madeleine was kidnapped, Gerry visited the National Center for Missing and Exploited Children and the International Center for Missing and Exploited Children, learning about some of the techniques they use to track missing kids. Gerry also met with U.S. Attorney General Alberto Gonzalez.
http://themaddiecasefiles.com/topic7227.html
More than two months after Madeleine was kidnapped, Gerry visited the National Center for Missing and Exploited Children and the International Center for Missing and Exploited Children, learning about some of the techniques they use to track missing kids. Gerry also met with U.S. Attorney General Alberto Gonzalez.