Yahoo isn't a news agency. This is from AP, therefore is comes to you through the filter of American corporatism. Having said that, if the story is accurate then of course the guilty parties should face whatever charges are applicable.
Keep in mind that the Longshoremen represent tens of thousands of middle class working people, and the cons and their predatory capitalist handlers can't stand that. They don't think these people deserve to be in the middle class and should be the working poor(a decent life should be for the privilaged few). That is, after all, money not being used to make billionaires ultra-billionaires.
What I'm concerned about is the right wing echochamber using the story, if it's accurate, to make the "union thug" blanket statement-like you are doing. How come you're not on here using the blanket statement "Wall st. thugs" because of the banksters who have stolen hundreds of billions?