International Atomic Energy Agency experts on Monday began assessing strengthened counterterrorism measures implemented at the Kashiwazaki-Kariwa nuclear plant in central Japan, with the plant operator hoping a positive outcome will persuade local officials to approve a restart. Tokyo Electric Power Company Holdings Inc. requested the five-person IAEA delegation conduct the inspection, which runs through April 2, at the seven-reactor complex in Niigata Prefecture to determine whether the operator’s preventative measures meet international standards after a series of safety flaws came to light,…