a) as noted, Prof. Eli Pollak started a "Knesset Watch" survey right after Oslo in 1994, so this is old news as a system. b) both left- and right-wing groups in the US do the very same thing on all sorts of issues. c) although Israel has no multiple constituency, this is how democracy works. The elected rep is connected to his voting public.
UN Security Council condemns North Korea launch, vows action (Reuters)