The FBI arrested Robert Lorenzo Hester on Feb. 17 and charged him with planning bombings in Kansas City, Missouri. The FBI said Hester, of Columbia, Missouri, plotted with undercover agents to use pipe bombs, some fitted with nails for maximum damage, to attack a train station and nearby buses.This was the 94th confirmed Islamist-inspired terror plot or attack within the U.S. since Sept. 11, 2011.The FBI said it became aware of Hester, 25, when he showed an affinity for the Islamic State, or ISIS, on social media.Hester made contact with an undercover FBI employee one day before being arrested in...