When is it good to burn the flag...when is it bad?

From Newsday:
Summary Box: House Passes Flag-Burn Ban
FLAG AMENDMENT: The House passed a proposed constitutional amendment to ban desecration the American flag, but it may be a hard sell in the Senate.
WHAT IT SAYS: "The Congress shall have power to prohibit the physical desecration of the flag of the United States."
WHY: Supporters hope to overturn a 1989 Supreme Court decision saying flag burning was a right of free speech.


From several websites about Proper Handling:
When a flag is so worn it is no longer fit to serve as a symbol of our country, it should be destroyed by burning in a dignified manner.

Q: My flag is old and ready to be retired. What should I do?
A: Section 8k of the Flag Code (see below) states, "The flag, when it is in such condition that it is no longer a fitting emblem for display, should be destroyed in a dignified way, preferably by burning."