They appear after shark attacks, marathons, earthquakes and even terrorist attacks like the one in Paris last year. And they have appeared en masse most recently in images of migrants and refugees attempting deadly crossings of the Mediterranean Sea to reach Europe.
원문출처 : http://www.cnn.com/2016/08/30/health/space-blankets/index.html
원문출처 : http://www.cnn.com/2016/08/30/health/space-blankets/index.html