The chief UN weapons inspector thinks it will be difficult to find and destroy all of Syria\'s chemical weapons, but he believes it is achievable. Ake Sellstrom, who led weapons inspectors on their visit to Syria last month, told the BBC in a statement that it much depended on whether the Syrian government and the opposition were willing to negotiate. He added his team\'s report which confirmed the use of chemical nerve gas in Syria may be behind the approval of the Syrian government to put its stockpile of chemical weapons on probation. Hundreds of children died in a chemical weapons attack in the area of Ghouta on August 21. Sellstorm explained that the gas was used five days before the arrival of the team to Syria, noting that the gas was neither simple nor of the type that can be prepared at home. He added that they could not figure out that the side that bought the gas stored and used it. The UN inspectors also concluded that the Sarin gas was used in a land attack missile. The inspection team had visited the Adhamiya district and spent one hour taking blood and soil samples then left quickly, added the BBC report