Their "loved ones" should not have tried to kill innocent israeli civilians. Had they not done anything violent and illegal according to any system of law, they would not be in that situation in the first place now would they. Thats like saying you will let guilty death row inmates in texas free for Shalit. The comparison between them and Shalit is morally reprehensible.
U.S. says working on initiative to de-escalate Syria fighting, with focus on Aleppo (Reuters)
from the article: Netanyahu urges international community to work to free Gilad Shalit