Whjy can't we do stuff like this at the trimet board meeting?

WASHINGTON (Dow Jones)--A rowdy group of about 200 union protesters shut down a Mortgage Bankers Association conference for about 10 minutes Wednesday, taking over the stage to protest against homebuilder PulteGroup Inc. (PHM) before leaving peacefully.
The protest led to some head-scratching among attendees, who wondered why a mortgage-banking conference was targeted. The protest appeared to be triggered by the presence of Debra Still, chief executive of Pulte's mortgage unit and chairman of the mortgage bankers' newly created council on residential mortgage servicing issues.