Venezuelan President Chavez threatened to refuse to sign the declaration to protest Cuba's absence from the hemispheric gathering, and to protest the document's failure - as it is now reportedly written - to demand an end to the U.S.embargo of the island.
VOA: standard.2009.04.18
Diplomats at the United Nations are working on a document that would demand restrictions on oil and other commercial business with the Syrian regime if it refuses to implement the Annan peace plan for a cease-fire and a transitional government.
By the same token, a constitutional reform may be aimed at fixing imperfections in the system of representation or other imperfections that demand amendments from the original constitutional document.