Three of the military's most senior leaders are embroiled in ethics scandals. The latest, Marine Gen. John Allen, the top commander in Afghanistan, is under investigation for more than 20,000 pages of material including e-mails sent to Jill Kelley, the woman involved in the scandal that forced David Petraeus to resign as CIA director. Allen succeeded Petraeus in Kabul. An Associated Press report ... called the e-mails flirtatious." Experts speculate that these lapses stem from the sense of entitlement in the upper reaches that exists not just in the armed services. "It's an old narrative that those at the top often become poisoned by their power," said Peter Singer, director of the 21st Century Defense Initiative at the Brookings Institution. Two other members of the top brass face ethics probes of their own. Adm. James Stavridis, head of European Command, was criticized last week in an Pentagon inspector general report that cited his use of military aircraft for personal business, including a trip to a Burgundy wine-tasting society. Earlier this year, Army Gen. William "Kip" Ward, then head of U.S. Africa Command, was hammered by another inspector general report for lavish travel and improper use of military transportation and staff. The report said Ward and his wife had staff pick up their laundry and do their shopping. [Allen] had been scheduled for a Senate confirmation hearing this week for his new post: succeeding Stavridis as chief of European Command. That hearing has been postponed.