user: Question: Who directed the episdoe veiwed by 3.24  million viewers?
Columns: ['Series #', 'Season #', 'Title', 'Directed by', 'Written by', 'Original air date', 'Viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [11.0, 1.0, '"No Excuses"', 'Jeff Bleckner', 'Glen Mazzara', 'June22,2010', '3.42']
SQL:

assistant: SELECT "Directed by" FROM "Table" WHERE "Viewers (million)" = '3.24';