Article Photos: Massive security for Greek Independence Day Parade 3/15

  Greek Presidential guards walk past a double security metallic barriers and police officers after the changing of the guards at the Unknown Soldier Monument in front of the Parliament in Athens on Sunday March 25, 2012. Greek authorities have launched a massive security operation across central Athens for a military parade in the capital to mark the country's independence day, for fear that anti-austerity protests could disrupt the march. Thousands of police have been mobilized, while traffic on all major routes leading to the parade area has been blocked off. For the first time, the public will be banned from a large part of the route, including the area in front of Parliament from where politicians and other officials will watch the march. (AP Photo/Dimitri Messinis)