This 401(k) alternative has helped US workers save more than $1.7 billion so far

By some estimates, almost half of US private sector workers — close to 57 million people, according to AARP — do not have access to a retirement plan at their jobs. That’s either because their company doesn’t offer one or because they don’t qualify to participate in an employer’s existing plan.

​ By some estimates, almost half of US private sector workers — close to 57 million people, according to AARP — do not have access to a retirement plan at their jobs. That’s either because their company doesn’t offer one or because they don’t qualify to participate in an employer’s existing plan. Read More Breaking News, Latest News and Videos | CNN