1C

Should items be given back to the country of origin, e.g. Egyptian artefacts?

Not necessarily. I think it depends on who discovers the item and where they would like to display it. Some of the items are very fragile and moving them could be the end of them.

I think they probably should as a general rule but whether the items will be destroyed should also be a consideration.

I'm not sure. I guess it would depend on a number of issues such as who, why and how.

I don't see why compromise can't be reached - acknowledgment that the country where an artefact is found is the rightful owner, but the country that has it can keep it 'on loan' - or maybe that would be too simplistic in these highly political times.
All historical artefacts have their story to tell, and the story should be told to and shared with the world, not kept hidden for political or religious reasons.

I think it depends on if the originating country can care for the artifacts. With all the world turmoil it doesn't make sense to leave them in harm's way.

This is really a tricky one. I can see both sides of the argument and do think the context needs to be looked at in a case by case scenario.