Analysis Crisis in missing or murdered women about more than crime prevention

Although each story of a missing or murdered aboriginal women is different, there are also similarities that arise again and again: abuse, trauma, child welfare, addictions. And almost always, poverty. More 10:10 AM ET

• Police have failed missing, murdered Manitoba women, families say Apr 08 video
• Sagkeeng First Nation has most unsolved cases of missing or murdered indigenous women Apr 09 video
• Missing & Murdered: 7 facts about northern Ontario cases Apr 09 audio

Updated Driver with prosthetic leg gets note saying she 'should be ashamed' for using accessible spot

A Halifax woman with a prosthetic leg was shocked to find an anonymous note on her car that accuses her of using an accessible parking space when she doesn't appear to have a disability. More 11:00 AM ET read comments

• 3D printer makes prosthetic leg for Wolfville woman Mar 28
• Plea for Wolfville hit-and-run driver to come forward Dec 09

Analysis Mike Duffy's the one on trial, but blame and shame abound: Chris Hall

Mike Duffy's trial may be only a few days into an extended run, but it's already clear none of the principal figures in this case is going to emerge from it for the better. Not Duffy. Not Stephen Harper. Not Nigel Wright. Not the Senate itself. More 9:01 AM ET read comments

• Live Blog Mike Duffy trial, Day 4 5:00 AM ET
• Mike Duffy trial: Defence continues attack on vagueness of Senate rules 10:03 AM ET

New Worst mass extinction ever caused by CO2, acid in the oceans

Scientists have found the first direct evidence for the cause of the world's worst mass extinction - high carbon dioxide levels in the atmosphere that acidified the oceans. More 11:03 AM ET read comments

• Methane-spewing microbe blamed in worst mass extinction Apr 07 audio
• Rising acidity of oceans a major threat to coral reefs Jul 09