Also in Investigations:

• Family income is the number one factor in determining who attends college, according to a National Opinion Research Center study.

• Encryption technology would protect individual privacy and prevent economic espionage, according to a National Research Council study led by Law School Professor Kenneth Dam.

• Graeme Bell and Nancy Cox of the BSD have narrowed the search to a region on human chromosome 2 for a gene that plays a major role in non-insulin-dependent diabetes mellitus.