Should terminally ill people have the option of to end their own lives with the help of a doctor in Massachusetts? It's a question we've asked before - and this week, it's coming up again.

Right now, six states — California, Colorado, Montana, Oregon, Vermont, and Washington - plus Washington D-C allow physicians to prescribe lethal drugs to terminally ill patients who ask for it.

A ballot measure to make it legal in Massachusetts was defeated back in 2012, with subsequent failed attempts to advance a bill on Beacon Hill.

The latest version – known as the End of Life Options Act – has a public hearing Tuesday.

Two people who plant to testify on the bill -- Dr. Mark Rollo, an opponent of the bill and Dan Diaz, whose wife, Brittany Maynard, was diagnosed with a terminal brain and chose to take advantage of Oregon’s dignity law  – spoke with Jim Braude.