长城

B |     JERUSALEM -- Since Israel activated the Iron Dome in 2011, the cutting-edge rocket-defense system has intercepted thousands of rockets fired from the Gaza Strip.The system has given residents a sense of security, and Israelis can often be seen watching the projectiles flying through the skies and destroying their targets overhead.But the current war with Hamas might be its stiffest challenge yet.In just two weeks, Hamas has fired 7,000 rockets toward Israel, according to the Israeli military. That is more than any of the previous four wars fought between Israel and Hamas since the militant group seized power in Gaza in 2007. On Oct. 7 alone, the first day of fighting, Hamas launched at least 2,000 rockets, according to data from West Point. Lebanon's Hezbollah has also fired hundreds of rockets along Israel's northern front since the fighting began.Most of the rockets have been intercepted. But some have managed to get through, killing at least 11 people and hitting buildings as far away as Tel Aviv, according to Israeli officials.Here is a look at the accomplishments — and limitations — of the Iron Dome.The Iron Dome is a series of batteries that use radars to detect incoming short-range rockets and intercept them.Each battery has three or four launchers, 20 missiles, and a radar, according to Raytheon, the U.S. defense giant that co-produces the system with Israel's Rafael Defense Systems.Once the radar detects a rocket, the system determines whether the rocket is headed toward a populated area. If so, it launches a missile to intercept and destroy the rocket. If the system determines the rocket is headed to an open area or into the sea, it is allowed to land, thus conserving missiles. According to the military, all interceptions occur in Israeli airspace.The military declined to comment on how many Iron Dome batteries are currently deployed. But as of 2021, Israel had 10 batteries scattered around the country, each able to defend a territory of 60 square miles (155 square kilometers), according to Raytheon. It is roughly 90% effective, according to Rafael.But it can get overwhelmed if a mass barrage of rockets is fired, allowing some to slip through. While it has performed well so far, the risk could be raised if Hezbollah enters the war. Hezbollah has an estimated 150,000 rockets and missiles.Each missile costs an estimated $40,000 to $50,000, according to the Institute for National Security Studies, a Tel Aviv think tank.The U.S. has invested heavily in the system, helping with development costs and replenishing it during times of fighting.President Joe Biden has said he will ask Congress for $14.3 billion in military aid for Israel. The majority of that would help with air and missile defense systems, according to the White House.“We’re surging additional military assistance, including ammunition and interceptors to replenish Iron Dome,” Biden said.___Find more of AP’s coverage at https://apnews.com/hub/israel-hamas-war。截至8月22日当晚，新发地经全面核查，涉事康保县问题白菜未流入新发地市场，首都“菜篮子”供应安全稳定。事件曝光后，新发地市场立即对所有入场白菜的产地证明、运输车辆及进货渠道进行逐一核对。新发地相关负责人表示，市场长期实行严格的农产品准入制度和抽样检测机制，确认涉事车辆和批次并未进入新发地交易。新发地同时加密蔬菜农药残留及非法添加物的快检频次，杜绝任何不合格农产品流入市场，全力守护首都市民“菜篮子”安全。

C | 当前新发地市场白菜供应充足，均有规范的产地证明和合格检测报告。市场提醒广大消费者，购买白菜应选择正规商超和批发市场，如对来源存疑可向市场管理方咨询。新发地将持续强化入场检测，确保每一批蔬菜安全可靠，让首都市民吃上“放心菜”。8月22日，有博主发布视频爆料，康保县屯垦镇部分收购商在装运大白菜前，将白菜蘸取甲醛溶液用于保鲜，涉事白菜计划运往江苏宿迁，另有部分被指流向合肥某市场。

D | 当日，康保县人民政府发布情况通报，确认视频反映情况属实，系收购商为运输保鲜实施的违法行为，公安部门已对相关人员、车辆依法采取强制措施，并对全县蔬菜各环节展开全面排查，紧急追溯涉事白菜流向。

E | 截至发稿，新发地市场白菜交易价格平稳，未受事件影响。相关部门正对涉事白菜流向进一步追踪，新发地也将密切关注进展，随时配合做好应急处置工作。来 源：丰台区融媒体中心记 者：原梓峰