Security tight in Buenos Aires for G20 Argentina’s capital is under a total security shutdown as the heads of state of the world’s 20 biggest economies meet for the G20 summit SECURITY (Nov 29-Dec 1) Around 3,000 army troops deployed, alongside 22,000 police and security forces All flights over city diverted Trains, subways and all public transport cancelled Friday declared public holiday High security zone Traffic restricted U.S.: Three E-3 Awacs surveillance aircraft and three KC-135 refuelling aircraft will monitor city. USS Carl Vinson aircraft carrier and 400 troops stationed in neighbouring Uruguay Av. Figueroa Alcorta BUENOS AIRES Río de La Plata PUERTO MADERO MALBA museum Casa Rosada RECOLETA Retiro railway station Presidential Port Palace Teatro Colon: G20 leaders meet for Friday night gala Obelisk Plaza de Mayo Complejo Costa Salguero: G20 venue Av. 9 de Julio 1km 0.6 miles Sources: G20.org, Argentinian Government, Clarín Picture: Getty Images © GRAPHIC NEWS