Government workers watch fireworks during the worldwide candlelight vigil on world food security and kick-off celebrations for World Food Day at the Quezon city circle, suburban Manila October 21, 2008. A recent survey by the Social Weather Stations (SWS), published in a local newspaper on Tuesday, showed that about 3.3 million Filipino families or 18.4 percent went hungry at least once in the last three months. [Agencies]