The DMCA is not the only law put forward recently that is too broad and is being misused because of that. John Allen Muhammad 'The Washington Sniper' has been found guilty of 'terrorism'. While his crime was terrible and he did, in a broad sense, terrorize the public, I think terrorism has to be understood as something saner (hence more dangerous), more organized and more 'intentful'. A lone gunman is hardly ever a terrorist, and to qualify he would have to fit into a broader picture of threats than this outrageous series of murders.
Muhammad may end up being convicted of the crimes feared while he was still on the loose (namely organized domestic terrorism) instead of the crimes he committed (a series of meaningless murders).