The U.S. Army since 1995 has spent at least $32 billion on development, testing and evaluation of 22 weapons programs that were later canceled — almost a third of its budget for creating new weapons, according to an internal evaluation released today.Todd Harrison, defense budget analyst for the Center for Strategic and Budget Assessments, a private Washington study group, this week likened the situation to “Hollow Growth” where “acquisition costs increased while the inventory of equipment grew smaller and older.”Harrison calculated that since 2001 the Pentagon and military services canceled 12 programs on which $46 billion was spent. His list included seven of the biggest Army terminations.