The reason for the increase is 16 multiemployer pension plans that the PBGC predicts will need financial assistance within the next decade, with two of those plans expected to need assistance in excess of USD 26 billion. Sourced from: http://www.pensionfundsonline.co.uk/content/country-profiles/usa/122
Unfortunately, the deserving retirees depend on the goodwill of the employer to provide a pension scheme, as companies are not required by law to give pension.
[youtube video=https://youtu.be/MbuUUtkIsgY] Sourced from: http://money.usnews.com/money/retirement/articles/2011/02/07/7-reasons-you-dont-have-a-pension