The FBI and US Postal Service inspectors are on their way to investigate the suspicious envelope found at Temple Square containing an unknown white powder. The letter was mailed to the temple and was opened inside an office in the entrance area to the Salt Lake Temple. That is in an area open to the public. They have since placed the letter into a black plastic bag. Both Salt Lake City police and fire departments are on the scene and have closed off the area, including eastbound lanes of North Temple between State Street and Main Street. They did not...