Q. and A. About 'Frontline' Series on the Financial Crisis DealBook's Andrew Ross Sorkin is hosting a question and answer session at 2:30 Eastern time on Thursday afternoon with Michael Kirk and Mike Wiser, the producers of the PBS "Frontline" documentary on the global financial crisis. Readers can submit questions now. To submit questions for the "Frontline" producers use the form above. Comments submitted below will not be included in the Q. and A.