indiscernible ] >> reporter: with order soon restored, the senator interrupted, the low-key charles grassily, provided one of the afternoon's few lighter moments. >> people always say i have the ability to turn people on. [ laughter ] >> reporter: this tough questioning the continue tomorrow and later on this week, brian, we expt to hear from some of those involved in the controversial cases the judge ruled on, including one of those new haven firefighters. >> tom fitzgerald live in the newsroom. >>> new developments in the case of the only man tried for the terror attacks on 9/11. a federal appealsourt ordered new arguments in the case against zacarias moussaoui. however, one of the judges on the appeals court is diagnosed with alzheimer's disease n. january, the lawyers for moussaoui failed to turn over evidence -- no word when the new arguments will be heard. >>> metro's deadliest disaster ever, the focus of a hearing on capitol hill today. lawmakers searching for answers in last month's deadly crash that killed 9 people and what has changed since then. john henrehan has more. >> reporter