According to plaintiffs, the complaint alleges that the directors crossed that line by failing to adequately respond to several “red flags”: (1) a $200 million audit difference originating in 1998; (2) a whistleblower’s complaints that Fannie Mae was improperly manipulating earnings; (3) signs that Fannie Mae management was using improper hedge accounting practices; and (4) sister company Freddie Mac’s disclosure in 2003 that it had understated profits. We disagree that these allegations create a“substantial likelihood” of personal liability for the directors. On each claim, the Board or its relevant committee looked into the matter and relied on internal or external accounting experts and officials responsible for those matters.