That Shalit can get some contact with his family via letter delivered through a former US President is a good thing. Bowe Bergdahl, a US POW in Afghanistan has not had the luxury. It is more than the combined efforts of the Israeli government has achieved. And even though Israel is a HCP to Geneva IV, the prisoners Israel holds from Gaza have had no family contact since 2006. The US would like the Taliban to act like an HCP to Geneva. But we don't expect it. Israelis keep demanding that Hamas act like a Geneva HCP.
from the article: Carter: Hamas agrees to deliver new Gilad Shalit letter