The Real ID Act was passed by Congress in 2005 and went into effect in 2008, as a way to increase security and deter identity fraud in a post-9/11 world. The law requires all state identification cards to have a minimum set of requirements.
But Minnesota lawmakers were so concerned about privacy questions that in 2009, they passed a law prohibiting the state from upgrading its driver's licenses to comply with Real ID.
As of right now, a current Minnesota driver’s license won't get you into certain federal facilities or nuclear power plants. At some point in the future (if it doesn't change) that license will no longer be acceptable identification to get on a commercial airline flight either.
The federal government put a soft deadline of January 2016 for when it would stop accepting non-compliant IDs.
So something has to get done – but if legislators decide to take up the issue, they first have to change that law passed in 2009.