Abdullah's Promise on Anti Corruption

Well, we have heard him 4 years ago when he took office from Dr M, that one of his main work is to make sure the government is "CLEAN". Four years gone, and we have not see much progress.

One of the hot issues is the RM 4.6B Port Klang Free Zone case. Have Abdullah is concern and serious about corruption, why he allowed his cabinet members to not directly answer the questions? Why there is no Independent Inquiry set up to look into the case?