SELECT us_viewers__millions_ FROM table_12570759_2 WHERE directed_by = "Rob Bailey" AND written_by = "Pam Veasey"
How many millions of U.S. viewers watched the episode directed by Rob Bailey and written by Pam Veasey?
CREATE TABLE table_12570759_2 (
    us_viewers__millions_ VARCHAR,
    directed_by VARCHAR,
    written_by VARCHAR
)