In this photo by Joshua Paul, a Malaysian flag flutters in front of the prime minister's office shrouded in haze in Putrajaya, Malaysia. Air quality was unhealthy at several locations in the country Friday, according to Department of Environment measurements. Wildfires caused by illegal land clearing in Indonesia's Sumatra and Borneo islands often spread choking haze to neighboring countries such as Malaysia and Singapore. In January, Indonesia ratified a long-awaited regional agreement on haze pollution that is binding on all 10 members of the Association of Southeast Asian Nations. The agreement calls on Indonesia to take steps to ease the problem through efforts of its own and international cooperation. If not, it can be held liable for the impact of haze on its neighbors.