"I don't know"

Today's subject is the simple statement of....."I Don't Know."   Quoted from Pres Obama, United State Attorney General Erick Holder, former Sec of State Hillary Clinton, as well as the head of the IRS, Steven T. Miller. 
Former US President Harry Truman had sign on his desk that read, "The Buck Stops Here."  These days no one seems to know where the buck went or who took it.