Does anyone really have a misunderstanding of what picketing is? Come on. I hate it when debates are reduced to gnashing over what the meaning of a commonly-used, fairly-understood word means. Give me a break.
Definition of picketing according to
www.legal-definition.freedictionary.com:
standing or parading near a business or government office usually with signs of protest or claims in labor disputes or public policy controversies (peace marches to pro- or anti-abortion advocates). Picketing is constitutionally guaranteed as free speech, but in some cases it may be limited by court order to prevent physical combat, blocking of entrances or threats to the public safety.
Definition according to Wikepedia:
"Picketing is a form of non-violent resistance in which people congregate outside a place of work or location where an event is taking place and attempt to dissuade others from going in ("crossing the picket line"). It can have a number of aims, but is generally to put pressure on the party targeted to meet particular demands. This pressure is achieved by harming the business through loss of custom and negative publicity, or by discouraging or preventing workers from entering the site and thereby preventing the business from operating normally.
Picketing is a common tactic used by trade unions during strikes, who will try to prevent dissident members of the union, members of other unions and ununionised workers from working. Those who cross the picket line and work despite the strike are known as scabs.
A mass picket is an attempt to bring as many people as possible to a picket line, in order to demonstrate support for the cause. It is a particularly useful tactic when only one workplace is being picketed, or for a symbolically or practically important workplace. Due to the numbers involved, a mass picket may turn in to a blockade.
Picketing is also used by pressure groups across the political spectrum."
A candle light vigil doesn't sound like picketing to me. Is it really that vague?