当枪支可以3D打印......
A would-be assassin out to kill a U.S. president builds a gun out of composite materials and hides bullets in his metal, rabbit’s foot keychain as he glides through a metal detector.
一名准备行刺美国总统的刺客利用复合材料组装了一把枪，并把子弹藏在他的金属制的兔子脚钥匙链里，蒙混通过了金属检测器。
He then reassembles the pieces and reconstructs the gun while sitting at a table at a political fundraiser.
后来他组装好部件重新装好了枪，然后坐在政府募捐箱桌前等待。
He approaches the president and pulls the trigger.
他接近了总统，扣下了扳机。
Only Clint Eastwood leaping in front of the bullet saves the fictitious president.
只有克林特·伊斯特伍德(Clint Eastwood)在子弹前跳起，拯救了虚构的总统。
The crowning moment in the 1993 hit film "In the Line of Fire" involved the John Malkovich’s villain putting together an untraceable gun, and now, lawmakers are trying to make that more difficult for others to do.
这是来自1993年的热门电影“火线狙击”中的辉煌时刻，其中约翰.马尔科维奇扮演的反派组装好了一把无法追踪的枪，而如今，立法者们正试图让想要效仿这样做的人们更加困难重重。
The current concern stems from a legal battle over guns that can be made using 3-D printers.
目前的担忧源自一场关于可以用3-D打印机制作出来的枪支的官司。
"Building guns out of materials that are undetectable by security screening devices is not necessarily a new concept, but in the past it required someone with specific skills who knew how to do it," said John Cohen, a former police officer and Homeland Security official who is currently an ABC News contributor.
“利用安检系统无法检测到的材料制造枪支并不是什么新概念了，不过在过去，这要求有专门技能的，懂得怎样做的人，”约翰.科恩说道，他之前是一名警察和国土安全局官员，现在是美国广播公司的新闻撰稿人。
"By putting these instructions on the internet you are dramatically expanding the number of people who could build these types of guns."
“把这些指南放到因特网上之后你就大大增加了可以做出这种类型的枪的人数。”
The 3-D printed guns are in the spotlight now because the U.S. State Department settled a multi-year court battle with a Texas-based company that was pushing to put downloadable instructions to build guns from 3-D printed pieces online.
3-D打印枪支如今重回视野是因为美国国务院最近解决了一场旷日持久的官司，官司是关于一个德州的公司，他们努力想要把可以下载的利用3-D打印元件组装枪支的指南挂到网上去。
A federal judge intervened with a restraining order.
一名联邦法官下达了禁制令进行干预。
The weapons at the center of the legal firestorm are ones that are printed out in parts and then constructed by the user.
处于法律风波中心的这种武器就是那些可以打印出组件，然后被用户重新组装的枪支。
Specialized printers are able to print out three-dimensional objects built out of plastic or resin.
特制的打印机可以打印出塑料或者树脂做的3维物件。
By following instructions that have the specifications for a gun, the user can then print the various pieces and put those together like a 3-D puzzle.
通过按照有枪支特别说明的指南，用户可以打印出不同的部件，然后像玩3-D拼图那样把它们组装起来。
But for a "functional firearm," Cohen said，"All it takes is for them to get the ammunition that you buy for any regular firearm and then start using it as a weapon."
不过对于“功能性武器，”科恩说道，“他们所需要做的仅仅是拿到弹药，而弹药 可以买常规武器用的那种，然后就可以作为功能性武器使用了。”
Much like guns themselves, the costs of 3-D printers range dramatically from hundreds to thousands of dollars.
跟枪本身一样，3-D打印机的造价也相差很大，从几百美元到上千美元都有。
The fact that these guns are printed at home and not by a licensed manufacturer who needs to keep records means that the weapons are untraceable in paper trails.
这些枪支可以在家里打印，而无需有执照的，需要记录在册的专门制作者的事实意味着这些武器从纸质文件上将无迹可寻。
Beyond that, they are also undetectable by metal detectors, including those used at airports and at federal buildings.
此外，它们也无法用金属探测器检测出来，包括机场和联邦大楼用的那种检测器。
The shifting aesthetic of 3-D guns, which are not necessarily black and could theoretically be any color, poses significant problems for law enforcement, Cohen said, noting that it might take longer for police to identify such a gun as a deadly weapon in a confrontational situation where every second counts.
3-D枪的美学变化，使得它们不再拘泥于黑色，理论上它们可以是任何颜色，这就为执法带来了棘手的问题，科恩说道，他注意到，在那种生死一线的紧要关头，警方可能需要更长的时间才能识别出这样的枪支是致命性武器。
"Depending on the appearance it could cause confusion when a police officer is trying to determine if someone is a deadly threat or not," he said.
“因为外观的缘故，它可能会在一名警察试图检查某人是否是致命威胁的时候引发困惑。”他说道。
The background checks required in many situations where people buy guns on the open market would not apply to those buying 3-D printers, which can be used for making numerous objects besides guns.
对于那些在公开市场买枪的人们来说，必需的背景检查也无法对那些购买3-D打印件的人们适用，而这些3-D打印件可以做出很多的物品包括枪支。
"As a cop you're going to be concerned that people who would typically have a difficult time obtaining a gun might be able to manufacture a gun that they can use to commit crimes。" Cohen said.
“作为一名警察，你将会担心那些通常很难买到枪的人们也许可以自己制作枪用来进行犯罪。”科恩说道。
对于3D打印枪支问题朋友们有什么看法吗？欢迎给amber留言哦！
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