The components of a Gaza ceasefire agreement seem to be falling into place.  

The heads of the US, Egypt, Turkey, and Qatar have signed off the deal at a summit of world leaders in Egypt. 

Hamas has released 20 living Israeli hostages and four of the 28 deceased in exchange for Israel freeing about two thousand Palestinians.  

CBS Radio's Steve Linde told Mike Hosking the fact the Trump administration's so firmly behind this deal is significant.  

He says for the first time, there's a hopeful feeling in the air, but the Middle East is a very volatile place and anything can spark it off again. 

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