'Tis the season of sex scandals, apparently. Four stories in the past two days perhaps show the prevalence of sexual harassment and other improprieties at work-and the danger of false claims:

1) CIA Director David Petraeus resigned, admitting to having an extramarital affair with his biographer, a reserve Army officer. The affair was discovered, predictably, as the FBI was monitoring General Petraeus's email. In a resignation letter to CIA employees, Petraeus wrote, "After being married for over 37 years, I showed extremely poor judgment by engaging in an extramarital affair. Such behavior is unacceptable, both as a husband and as the leader of an organization such as ours."

2) Lockheed Martin's new CEO was asked to resign before he officially took office. Christopher Kubasik's "lengthy, close personal relationship" with an employee at a defense contractor was revealed by an "internal whistleblower." In a statement, Kubasik said, "I regret that my conduct in this matter did not meet the standards to which I have always held myself."

3) Waffle House CEO Joseph Rogers Jr. is mired in accusations of impropriety from his former personal assisant.  The woman claims that he sexually harassed her and tried to force himself on her throughout the nine years of her employment.

4) The BBC has issued an apology for broadcasting false claims of sex abuse by a senior political figure in the 1980s. In an on-air statement, the network admitted, "We broadcast Mr. Messham's claim but did not identify the individual concerned. Mr. Messham has tonight made a statement that makes clear he wrongly identified his abuser and has apologised. We also apologise unreservedly for having broadcast this report."