Via Los Angeles Times:
The Supreme Court has freed states to control what appears on their specialty license plates, ruling Thursday that Texas authorities were justified in refusing to issue a plate bearing a Confederate battle flag.
In a 5-4 decision, the justices said a state-issued license plate is “government speech,” not the private speech of a motorist. For that reason, the state may decide which messages it wants conveyed on license plates.
“When the government speaks, it is not barred by the free speech clause from determining what it says,” Justice Stephen Breyer said for the court.