Chee and SDP touched a raw nerve when they start talking alot about more openness, transparency and accountability because it is something PAP is very sensitive about and also something which cannot be changed under the present leadership. On the other hand when opposition parties such as WP mention bread and butter issues, they are the least worry simply because with the resources at their disposal they can readily deliver the goods ....if buses are crowded or hospital beds not enough, they can purchase more buses or build more hospitals. If trains are too congested they can build more mrt lines. And they can launch HDB flats as and when to meet the changing demand. So really it is quite obvious why they are coming down hard on SDP and not other opposition parties...