The Border Patrol is claiming success along a formerly chaotic five-mile stretch of the border between the San Ysidro and Otay Mesa ports of entry, where fencing was raised and reinforced with razor-studded concertina wire. Yesterday, agents in San Diego celebrated the completion of the wire project, begun in December and mostly finished about two months ago. The Border Patrol said both illegal-crossing arrests and assaults against agents in the area are down by more than 50 percent. However, a growing number of apprehensions and assaults are occurring west of the San Ysidro port of entry, and overall arrests in...