Yet the Wyatt Earp killed Johnny Ringo claim can be found in four separate sources (Forrestine Hooker, John Flood, Frank Lockwood, and Frederick Bechdolt), and each person had contact with Wyatt Earp or stated he told them the story.
A TCD is any sign, signal or marking that involves traffic. A speed limit sign is a type of TCD. A TCD ticket is a lesser violation carrying only 2 points. Even the lowest level speeding violation carries 3 points and the stigma of a speeding violation.
Single sign-on. Single sign-on (SSO) is a property of access control of multiple related, yet independent, software systems. With this property, a user logs in with a single ID and password to gain access to a connected system or systems without using different usernames or passwords, or in some configurations seamlessly sign on at each system.