No offense, but Kossacks are pretty gullible, if not retarded. The reason why Dodd has surged, presumably, is because of his recent 'vocal' opposition to the latest FISA bill. Dodd isn't doing this because he gives a sh**t about the constitution; he's doing this because he's not breaking the MoE in Iowa and needs to somehow attract liberal primary voters. Somewhat similar to Vilsack's earlier call for congress to defund the Iraq War. Both are nothing more than publicity stunts.
Likewise, the reason why Hillary hasn't shown this 'leadership' is because she has no incentive to do so. She's crushing everyone everywhere, so why do something gutsy and risk being called out by the GOP as being 'weak on national security' or whatever their usual bullsh**t catch phrases are? Now, if she were trailing Obama in the early states and her campaign team said it was because she wasn't attracting enough base voters, then you'd have a similar release by the Clinton campaign.
If you want to see what type of views Dodd really has on this matter, note that he has voted in favor to reauthorize the Patriot Act. But bottom line, the platforms and rhetoric of most of the candidates running are motivated by political expediency, not by a genuine desire.
Dodd was also the first member of the Senate to come out against the Iraq war funding. As for the Patriot Act re-authorization, only 10 Senators voted no, and they weren't the 10 Senators you'd expect, since Boxer and the MA Senators voted aye, while Alito supporting Byrd voted nay.
