The "actual malice" standard only applies when the statement is about a "public official", or a "public figure", or in some cases about a "matter of public interest". When it does apply it offers so much more protection to the defendant that it would be very rare for the defendant to assert "fair comment" instead. When the allegedly defamatory statement is about a purely private person, who is not a "public figure" in any way, the defendant may need to resort to the defense of "fair comment" instead.