Sex has proved to be the downfall of presidential candidates, members of Congress, governors and other notables. It's also among the chief reasons that senior military officers are fired. At least 30 percent of military commanders fired over the past eight years lost their jobs because of sexually related offenses, including harassment, adultery, and improper relationships. The statistics from all four military services show that adulterous affairs are more than a four-star foible. From sexual assault and harassment to pornography, drugs and drinking, ethical lapses are an escalating problem for the military's leaders. With all those offenses taken together, more than 4 in every 10 commanders at the rank of lieutenant colonel or above who were fired fell as a result of behavioral stumbles since 2005. For top officers, the numbers are startling. Eighteen generals and admirals, from one star to four stars, were fired in recent years, and 10 of them lost their jobs because of sex-related offenses; two others were done in by alcohol-related problems. The figures show that 255 commanders were fired since 2005, and that 78 of them were felled by sex-related offenses. [The] executive director of the Service Women's Action Network said ... that there really is no sufficient deterrent in place.