And now it's time for Backtalk, that's the time when we hear from you. Editor Ahmad Omar is with us today. What is going on?
AHMAD OMAR: Celeste, we have a little clarification. In our political chat last week, we talked about a staff shakeup for South Carolina Governor Nikki Haley. The co-chair of her reelection committee resigned over connections to the Council of Conservative Citizens. The Southern poverty Law Center calls that a white nationalist group.
When it comes to profound depression, many people just can't get relief from current treatments.
Now there's more evidence that the anesthetic ketamine, sometimes abused as a club drug, has potential as a fast-acting treatment for the condition.
Doctors at the Mayo Clinic gave 10 patients ketamine twice a week as an infusion that lasted 100 minutes. All the people had depression that had resisted other treatments. The patients got ketamine until their symptoms abated or they'd had four infusions of the drug.
The two Koreas have agreed in principle to talks aimed at mending their almost nonexistent relations, but they are stalled on the question of where to meet.
South Korea has suggested that high-level talks take place in its capital, Seoul, but North Korea has countered that only lower-level negotiations should take place and they should be held in its border city of Kaesong.
The rival Koreas have not met face to face for such negotiations since February 2011.