Former North Korean defectors living in South Korea prepare to float giant balloons carrying anti-Pyongyang leaflets at Imjingak park near the inter-Korean border in Paju on February 16, 2013. Activists launched balloons across the border carrying leaflets that criticise North Korea&#39;s ruling Kim family on the birth anniversary of late leader Kim Jong-Il, amid high tension over its long-range rocket launch and nuclear test.