WASHINGTON (AFP) - A well-known US academy that moulds cadets for potential military careers has opened an investigation after photographs of some of its students posing in Nazi costumes and parodying gays were posted on a public website. VMI Photo The Virginia Military Institute (VMI) said it was "disappointed" in the cadets' behaviour, but that the probe will determine whether any disciplinary actions will be taken against those involved, some of whom also parodied Africans during an October 2004 Halloween party. Although the party at the academy's "barracks" in rural Virginia occurred several months ago, the photographs of cadets --...