I support the idea of having a DNA data bank to locate missing persons or unidentified human remains. The concern is in the cross-matching of various indices, some of which are for the humanitarian purpose of finding missing persons, back to other indices that deal with criminality, such that the DNA of a missing person provided by, say, a relative to identify the person in question could be cross-matched to criminal indices and thereby lead to law enforcement actions.
On November 24th, 2014. See this statement in context.