They have also thoroughly trashed the American (and other) economies, driving jobs out of the country, ensuring a lack of competitiveness, rewarding the worst of behavior, increasing the gap between haves and have-nots, and very likely signing a death warrant for the U.S. and its economy through unsustainable practices and pay.
I just want to point out that there are many more factors that have led to the US economy shifting from an industrial economy to that of a service economy than just the unionization issue. In regards to labor itself, with the exception of government jobs, the biggest problem is very slowly being eliminated. This problem is the Defined Benefit Pension plans, which are a huge drain on capital. These are being phased out and replaced with Defined Contribution Pension plans. The only exception is the unions are paid by the US or state governments, because a common solution to them asking for raises is to throw more pension at them since by the time it becomes a problem, you will be long gone. The auto workers union had really bloated pensions, which was part of the reason why the US automakers failed. The main reason was not properly adapting to the market and economic conditions.
Economically, inflation played a big part in jobs leaving the country. The oil crisis of the 1970s drastically increased prices of most goods, causing the necessity of increasing wages to compensate. Eventually the US's comparative advantage went down for certain products and it became cheaper to make them elsewhere.
*read the entire paragraph please*

Really though, the biggest factor in companies being forced to shift their production to other countries, at least for publicly traded companies, is Wall Street, particularly investment bankers. No I am not talking Occupy Wall Street stuff here, so please keep reading so that I can explain. The first rule of business that they teach you is that your main, and most important goal as the head of a company is to
maximize shareholder wealth. Not increase, maximize. Why? Because Wall Street is watching. If they notice that there is a way for you to increase your stock price that you haven't taken advantage of, they will pounce on it. They will call a rival company up, and finance their hostile acquisition of your company, getting a good chunk of the profit from the increase of stock price from the new company implementing what the old company hadn't. If you have a factory operating in the US, and it is cheaper to open up a new factory in Vietnam, you better swallow your conscience and close that plant down as fast as possible and open the new one, because if you don't, the company that takes over will, and you will be out of a job. There is a reason why Yeungling, with 1% of the overall market, is the #1 American brewery in the world in production, followed by Sam Adams. Yeungling is privately owned, where as Sam Adams conducts business in such a way that it doesn't put itself at risk. Budweiser couldn't even do that and is now owned by AB Inbev.
So in reality, the movement of the industry from the US to other countries, a trend that seems to be reversing slowly, has been caused by capitalism in one of its purer forms. (The purest form of capitalism of course being the eventual merging together of industries into as singular of an entity as possible which then causes a whole new slew of problems.)
And really, why should these companies care about opening plants in the United States? To a lot of them, we are the other country as the companies are owned by foreign entities. Essentially we are in a maelstrom of economic principles all pulling at the economy from different directions. You have nationalism wanting to have things built in your home country fighting against the nature of capitalism and the shifting of the world towards a more global economy, which is of course further fought by the fact that there are countries. Here in the states you also have a fight between our desire to hold onto our Industrial past despite the fact that we are no longer that country, moving past it into a service and information based country. You also have Capitalism and its trend to converge and merge everything together into the highest form of profitability possible being opposed by the need to keep that very thing from happening, and our need to advance social programs for the people and artificially arrange the economy to keep certain industries from being overwhelmed.
Also, I am not saying that some unions aren't corrupt because they are, and they are a factor in the economy. They just make a great scapegoat for why things go wrong.
In any case, I came here for a different purpose. I was wondering if there were any other areas of the country besides the corridor where it would make sense to install a smaller scale HSR?