You most certainly do have a 401k option at US, the only thing is US doesnt to a match contribution.
You do understand that a 401k is your own money when a DBP is not your personal money going into it?
And you werent the only group effected:
Notification of Changes to Plan Benefits
In December 2010, the Trustees announced the plan will phase in an adjustment to the benefit accrual rates applicable to credit earned with contributing employers who first contributed to the plan on the participant's behalf
before April 1, 2003 under
Schedule A (PDF)
. Schedule A will be replaced with
Schedule B (PDF) for all active participants on the first day of the month following the ratification of their collective bargaining agreement replacing the agreement that is in effect on January 1, 2011.
Schedule B will also apply to credit earned with contributing employers who first contributed to the plan on the participant's behalf
after April 1, 2003. Schedule B will be in place for all active participants on the first day of the month following the ratification of the collective bargaining agreement that replaces the agreement in effect on January 1, 2011.
In addition, for a limited number of groups, benefits are based on a custom schedule derived from Schedule B.
The latest date that Schedule B will take effect in any instance is January 1, 2014.
These changes are prospective only. Benefit amounts previously earned under Schedule A will remain the same.
The Trustees took this important action in response to the economic downturn in 2008, and stricter funding requirements for pension plans imposed by the Pension Protection Act of 2006.
Here are links to the plan change announcement and related publications: