318 - Flags Over Boston

When is flying a flag government speech? That was the question before the Supreme Court in the case of Shurtleff, et al. V. City Of Boston et al. Could the City of Boston refuse to fly a Christian flag? Was the city required to do so? Or did Harold Shurtleff have the right to fly the flag of his choice on public property? What does this mean for other Freedom of Speech cases around the country?