Accenting again the campaign focus she has placed on veterans' affairs, Sen. Barbara Boxer on Sunday formally opened a veterans' center at Pasadena City College and was later brought to tears by a forceful defense of her record by Sen. Daniel Inouye of Hawaii, a highly decorated member of Congress. Inouye joined Boxer for her formal endorsement by the political action committee of the Veterans of Foreign Wars, whose California chairman also praised Boxer's work on behalf of veterans.