It is an idea that Jordan's late King Hussein repeatedly advocated. The intent is to break the stalemate on a largely symbolic issue with a symbolic solution.
Sovereignty is an abstract notion that makes people's feelings very strong.
It's a symbolic notion that makes it very difficult to compromise. Jerusalem was the biggest snag in the recently failed 15-day Camp David summit. Negotiators announced late on Thursday that they would start low-level meetings in the region tomorrow, and the talks are set to turn to the city once again. Israel has controlled the entire city since 1967. Most agree sovereignty has little impact on daily life.