Mexico, February 21 (ANI): As senior ministers from the world''s 20 most powerful economies gathered in Mexico on Monday for informal talks on the state of the global economy, U.S. Secretary of State Hillary Clinton expressed solidarity with neighbouring Mexico as it struggles to tame its brutal cartels and rampant corruption amongst authorities. Clinton also told reporters she was concerned about NGO''s operating in Egypt after its military-led crackdown on non-governmental organizations saw a group of American citizens seek refuge in the U.S. embassy in Cairo.