Lieberman is quoted in today's local paper as saying that there is no point to an additional freeze when the talks are deadlocked anyways. So, it appears that some politicians want talks just to make themselves look reasonable. The fact is that the Palestinian unchanging demands for years are about getting the 1967 borders and a right of return. Israel rejects this. The talks are deadlocked. The rest is just a public relations show.
Gunmen kill 1, wound 13 at Sri Lanka election campaign (AP)
from the article: Barak: U.S. put settlement freeze talks on hold due to WikiLeaks