This official-sounding phrase labels a considerable human problem and one of a quite astonishing extent.
The motives of those who disappear and the reasons, including medical and legal ones, which cause a search to be made are two of the subjects which JOAN YORKE discusses with, among others, Salvation Army officers, a lawyer, a doctor, an M.P., and a wife who was herself once ' missing '
Produced by MADGE HART