University of California-Berkeley officials say that campus police have reopened an investigation into the assault on a conservative activist who was manning a recruitment table on campus. Earlier this week, officials said the investigation had ended and police were seeking a felony arrest warrant from the Alameda County District Attorney Office. The new announcement, which offered no details, was the latest in a series of delays and cryptic messages from authorities relating to the Feb. 19 attack, which was captured on video and clearly shows the face of the apparent attacker. The new delay in the case drew the ire...