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The Arab Spring caused a break in relations, but the two countries are on track in rebuilding their partnership.

Water. if they're in a dry area, the survival time, as long as the air pocket will hold out, if they are wet, again, within one o two hour, they begin to get exhausted. their ability to help themselves will be deteriorating rapidly. but they can survive for up to six hours. >> up to six hours. it's been a while now. what do you do in that situation? because it is probably dark. if you're not familiar with this particular vessel, all you're doing is sort of tapping around in the dark. would people stay put or you suggest they try to figure how to make their way out of there? >> wearing a life j...

>> right, this is what sidescan sonar looks like. the more detail you want to get, you search a smaller area. they're going to make choices in terms of what frequencies they're using, what kind of detail they want in order to decide can i cover a broad area quickly, or do i have to cover a small area and take even more time but get higher levels of detail. >> with the side-scan sonar, it's basically looking out from where we are. taking a look at what's around us that way. >> we're looking sideways. we're pinging now and we're building up -- as that sound comes back, we're building up an image...

Sticking up. it's at least deep enough to swallow a ferry this size. do we know? >> we don't know -- >> i believe the depth in that area -- >> go ahead, peter. >> i believe it's 90 to 100 feet. at least the early reports suggest 90 to 100 feet. >> the conditions, you said it's cold, right, but it's fairly choppy, and in your experience with these things, you know, as peter said we're not sure, you know, what was happening inside of the ship. it was probably better for them to get off immediately. but you don't know. this happened 14, 15 hours ago, i would imagine, in darkness, you don't know a...

You place your arps against the sides of your chest in order to insulate the area. the life jacket will help you keep your head and neck above the water and dry. then you bend your knees in order to prevent water contact against your groin area. if you have multiple people, they can do what's refer to as a huddle position. in which everyone basically insulates each other's sides and chests by holding together while wearing their life jackets. >> andrew, back to andrew salmon now, andrew what are they telling you? are they hearing survivors, any tapping? what's the latest from investigators? ar...