Higher expenses led to lower-than-expected profits.Government contractor Booz Allen Hamilton (BAH -9.73%) missed Wall Street's profit expectations for the quarter and set full-year profit guidance that underwhelmed expectations. Investors are looking elsewhere, sending Booz shares down 10% as of 12:30 p.m. ET.Costs creep higherBooz Allen Hamilton provides information technology and consulting services for civilian and military government customers. The company has outperformed the market over the past five ...