B'nai Torah Institute in Brooklyn Is Target of 3 U.S. Investigations
B'nai Torah Inst, target of 3 current US investigations, was also target of '76 investigation by US Agr Dept over improprieties in its handling of summer lunch program for children; has been banned from participation in NYC's '77 lunch program; Repr Elizabeth Holtzman's role in bringing charges against inst that led to banning recalled (M)
