Do we really need a Constitutional Amendment banning desecration of the flag, or would a federal law be sufficient?

Is the GOP simply using this issue as another political stunt and creating more partisanship to posture themselves for the next election? Are they still exploiting 9/11?

Flag burning rarely occurs in this country; wouldn't an amendment simply encourage some to burn the flag in protest or to make a statement?

Probably too many questions here, but there's many more to this issue, I think.