-
在美国本土上空发现了一个高空监视气球，引发了一场外交事件。
-
美国官员声称该物体是一个中国间谍气球，而中国官员称其为 “民用飞艇”，主要用于追踪天气。
-
人们在蒙大拿州上空看到了这个气球，那里是美国一些核导弹发射井的所在地。
-
五角大楼正在 "不断固定 "这架飞机，并正在收集它的信号和数据。
-
关于在加拿大和阿拉斯加有第二个装置的报道是不准确的。
-
间谍气球被用于侦察目的已有几个世纪。
-
侦察气球的首次使用是由法国人在1794年的弗勒鲁斯战役中进行的。
-
最近，在蒙大拿州发现了一个中国间谍气球，在美国上空徘徊了很长一段时间。
-
间谍气球被用来观察和收集关于敌方部队和地形的数据。
-
它们通常配备有摄像头和其他传感器，可以用来监测某个地区的活动。
-
这些气球可以在高空飞行，并在很长一段时间内保持不被察觉。
-
它们也可用于通信目的，如在两点之间转发数据。
-
在蒙大拿州发现的中国间谍气球提醒我们对外国监视保持警觉的重要性。
-
自美国内战以来，间谍气球一直被用于监视目的。
-
在第一次世界大战期间，美国陆军航空局使用气球进行监视并提供空中图像。
-
在20世纪50年代，美国空军启动了Genetrix项目，这是第一次 “大规模、无人驾驶的高空气球情报行动”，旨在对苏联陆地进行拍照。
-
最近美国官员指出，在过去几年中观察到了气球监视活动的事例。
-
间谍气球是一种有效的监视工具，因为它们能够飞越敏感地点以收集信息。
-
美国一直在追踪一个几天前进入其领空的气球。
-
官员们没有给出该气球的具体尺寸，但他们承认它是 “相当大的”，“大到足以造成碎片场的破坏”。
-
美国仍在监测该气球，还没有采取任何行动将其击落。
-
一个监视气球目前正在美国大陆中心上空飞行，高度为60,000英尺。
-
它已经从蒙大拿州向东移动，预计将在该国上空停留几天。
-
该气球此前曾飞越阿拉斯加的阿留申群岛和加拿大。
-
为了应对该气球的出现，加拿大政府正在采取安全措施，并监测可能发生的第二次事件。
-
五角大楼正在格外警惕，以减少与气球路径穿越敏感地点有关的任何外国情报风险。
-
一个中国侦察气球被发现在美国领土上空，并停留了很长一段时间。
-
这个气球值得注意的是它的高度和它愿意在美国大陆上长时间停留。
-
美国情报官员还报告说在夏威夷和关岛上空发现了类似的气球。
-
这位国防官员指出，该气球可能不会为中国的监视能力提供重大价值。
-
军事领导人建议不要对气球采取 “动能行动”，因为这对地面上的平民有潜在的风险。
-
该气球既不构成物理威胁，也不构成实质性的情报威胁。
-
军方一直在通过多种手段观察该气球，包括有人驾驶的飞机。
-
军方有 "足够的权力 "在必要时采取行动保护美国人民。
-
众所周知，美国和中国互相监视。
-
一位国防官员说，气球的能力似乎并不比中国的卫星和其他工具更先进。
-
目前还不清楚该气球是否是为了被发现。
-
Steve Tsang教授认为，这个气球具有象征性的价值，显示了中国人勘察美国军事设施的能力。
-
几十年来，美国一直在派间谍飞机监视中国的领空，现在中国也可以这样做。
-
布林肯取消访华的决定表明拜登政府对这一事件的重视程度。
-
众议院中国问题特别委员会的领导人说，此举表明，北京 “最近的外交姿态并不代表政策的实质性改变”。
-
中国对美国构成的威胁并不局限于遥远的海岸，必须采取行动来应对它。
-
中国最初否认与该事件有关，而是指责 “猜测和耸人听闻”。
-
后来，中国外交部承认，该飞艇来自中国，由于西风和有限的自我转向能力而发生了偏差。
-
中国方面对因不可抗力而意外进入美国领空表示遗憾。
-
美国敏感军事地区附近出现不明物体
-
《环球时报》援引一位专家的话说，只有美国和中国有能力制造这么大的可航行气球
-
在没有接触到该物体的情况下，不可能排除它是一个气象气球。
-
如果美国能证明这个气球来自中国，那就说明中国在该领域的技术上领先于美国。
-
A high-altitude surveillance balloon was spotted over the U.S. mainland, sparking a diplomatic incident.
-
U.S. officials claim the object is a Chinese spy balloon, while Chinese officials called it a “civilian airship” mainly used to track weather.
-
The balloon was seen over Montana, home to some of the United States’ nuclear missile silos.
-
The Pentagon is “constant fix” on the aircraft and is collecting signals and data on it.
-
Reports of a second device in Canada and Alaska are inaccurate.
-
Spy balloons have been used for centuries for reconnaissance purposes.
-
The first known usage of reconnaissance balloons was by the French during the Battle of Fleurus in 1794.
-
Recently, a Chinese spy balloon was spotted in Montana, loitering over the US for an extended period of time.
-
Spy balloons are used to observe and collect data on enemy troops and terrain.
-
They are usually equipped with cameras and other sensors and can be used to monitor activity in a certain area.
-
These balloons can fly at high altitudes and remain undetected for long periods of time.
-
They can also be used for communication purposes, such as relaying data between two points.
-
The Chinese spy balloon spotted in Montana is a reminder of the importance of maintaining vigilance against foreign surveillance.
-
Spy balloons have been used for surveillance purposes since the American Civil War.
-
During World War I, the U.S. Army Air Service used balloons to conduct surveillance and provide aerial imagery.
-
In the 1950s, the U.S. Air Force launched Project Genetrix, which was the first “large-scale, unmanned, high altitude balloon intelligence operation” designed to take photos over the Soviet land mass.
-
Recent U.S. officials have noted that instances of balloon surveillance activity have been observed over the past several years.
-
Spy balloons are an effective tool for surveillance, as they are capable of flying over sensitive sites to collect information.
-
The U.S. has been tracking a balloon that entered its airspace a couple of days ago.
-
The officials have not given any specifics about the size of the balloon, but they have acknowledged that it is “sizable” and “large enough to cause damage from the debris field”.
-
The U.S. is still monitoring the balloon, and has not yet taken any action to bring it down.
-
A surveillance balloon is currently flying over the center of the continental United States at a height of 60,000 feet.
-
It has moved eastward from Montana and is expected to remain over the country for a few days.
-
The balloon has previously flown over Alaska’s Aleutian Islands and Canada.
-
In response to the balloon’s presence, the Canadian government is taking security steps and monitoring a potential second incident.
-
The Pentagon is being extra vigilant to mitigate any foreign intelligence risks associated with the balloon’s path crossing over sensitive sites.
-
A Chinese surveillance balloon has been detected over U.S. territory and has stayed for an extended period of time.
-
The balloon is noteworthy for its altitude and its willingness to stay in the continental U.S. for an extended period.
-
U.S. intelligence officials have also reported similar balloons being detected over Hawaii and Guam.
-
The defense official noted that the balloon may not provide significant value to Chinese surveillance capabilities.
-
Military leaders advised against taking “kinetic action” against the balloon, due to the potential risk to civilians on the ground.
-
The balloon posed neither a physical threat nor a substantial intelligence threat.
-
The military had been observing the balloon through multiple means, including manned aircraft.
-
The military had “sufficient authority” to take action to protect the American people, if needed.
-
The US and China are known to spy on each other.
-
A defense official said that the balloon’s capabilities did not appear to be more advanced than Chinese satellites and other tools.
-
It is unclear whether the balloon was meant to be spotted or not.
-
Professor Steve Tsang believes that the balloon has a symbolic value, showing the Chinese’s ability to survey US military installations.
-
For decades, the US has been sending spy planes to monitor Chinese airspace, and now China can do the same.
-
Blinken’s decision to cancel his trip to China shows how seriously the Biden administration takes the incident.
-
The leaders of a House select committee on China said the move showed that Beijing’s “recent diplomatic overtures do not represent a substantive change in policy”.
-
The threat China poses to the United States is not confined to distant shores and must be acted upon to counter it.
-
China initially denied any involvement in the incident, instead blaming “speculation and sensationalizations”.
-
Later, the Chinese Foreign Ministry acknowledged that the airship was from China and had deviated due to the Westerlies and limited self-steering capability.
-
The Chinese side expressed regret for the unintended entry into US airspace due to force majeure.
-
An unidentified object was seen in proximity to sensitive military areas in the US
-
Global Times quoted an expert as saying only the US and China are capable of making navigable balloons of that size
-
Without access to the object, it is not possible to rule out that it is a weather balloon
-
If the US can prove the balloon is from China, it would show China is ahead of the US in the technology of the field
链接：https://www.washingtonpost.com/national-security/2023/02/03/what-is-chinese-spy-balloon-montana/