There have been many occasions when the rank and file of various unions have woken up one morning to find that their union officials have been arrested and led away in handcuffs.
Labour organisations are very moochy targets for wise guys.
There is a river of dues money to use for their rascally schemes. There's wonderful leverage when you own a union AND a busy little crime family. You can go out and use force to make your union bigger. If all the lights are green you can go as far as to get the government go along with you in eliminating ANY competition. Glen Clark is facing charges related to his involvement with unlicensed gambling folks.