President Obama is on a one-day visit to Stockholm before flying to Russia for the G20 Summit in St.Petersburg where Syria is expected to be high on the agenda. President Obama says the United States is consulting with European Union nations and other countries about clandestine American surveillance programs to keep the spying from, in his words, tipping over to being too intrusive. __________________________总统奥巴马抵达斯德哥尔摩进行为期一天的访问,此后他将飞往俄罗斯圣彼得堡参加G20峰会,预计叙利亚问题将是会议的主要议题. 总统奥巴马表示,美国正与欧盟众国以及其他国家商量有关美国私下进行的监控项目,用他自己的话来说,这一项目能防止间谍活动变得过度侵入._________________________