Tower Shield Combat [General, Fighter]

You are able to combine your strength and fighting ability to better utilize the largest of shields.
Prerequisite: Str 13+, base attack +2, tower shield proficiency
Benefit: When wielding a light or one-handed weapon and carrying a tower shield, you do not suffer the usual –2 penalty to attack rolls.
Normal: Employing a tower shield in combat  incurs a –2 penalty on all attacks.
Special: A fighter may select Tower Shield Combat as one of his fighter bonus feats.