That fact became scarier on Friday, when two Chinese SU-30 aircraft intercepted a U.S. WC-135 Constant Phoenix aircraft conducting a routine mission in international airspace over the East China Sea.
That dependence is just not acceptable to some lawmakers. “We need to make sure that F-35 parts are made in America,” says Congressman Duncan Hunter (R-Calif.), who is proposing a bill to require U.S. production of strategic items like high-tech magnets for radar, jamming systems, landing gear and other electronic warfare (EW) products. “If we can’t make that happen,” Hunter says, “then my bill has no meaning.”
Hunter recently sent a request to the Department of Defense asking for assurances that all components for the F-35 were either American-made or came from a place that had been cleared by a so-called national security waiver (NSW). Hunter specifically asked about the place of origin of samarium cobalt, an alloy that is a key part of the permanent magnets that control the plane’s guidance system.
The response was, at best, equivocal: “In response to your concern, the Department conducted a query but found no instances of noncompliant cobalt alloys in the F-35 since those described in the attached report,” read the letter from the Pentagon. That means that if military planners thought they needed to import those parts, they could ask for a waiver.
“These waivers are being granted without enough forethought about what they mean,” Hunter told me. “If we’re going to allow Japan, an ally, to buy the F-35, why should we let them get those materials from China, which has failed to put its foot on North Korea and obstructs us in other ways?”
http://www.foxnews.com/opinion/2017/05/19/chinese-threat-in-sky-and-underground.html 
F35 ใช้แร่ที่ผลิตแม่เหล็กจากจีนหรือเมกากลัวจีนวางยาในแม่เหล็กมันทำได้หรือ
That dependence is just not acceptable to some lawmakers. “We need to make sure that F-35 parts are made in America,” says Congressman Duncan Hunter (R-Calif.), who is proposing a bill to require U.S. production of strategic items like high-tech magnets for radar, jamming systems, landing gear and other electronic warfare (EW) products. “If we can’t make that happen,” Hunter says, “then my bill has no meaning.”
Hunter recently sent a request to the Department of Defense asking for assurances that all components for the F-35 were either American-made or came from a place that had been cleared by a so-called national security waiver (NSW). Hunter specifically asked about the place of origin of samarium cobalt, an alloy that is a key part of the permanent magnets that control the plane’s guidance system.
The response was, at best, equivocal: “In response to your concern, the Department conducted a query but found no instances of noncompliant cobalt alloys in the F-35 since those described in the attached report,” read the letter from the Pentagon. That means that if military planners thought they needed to import those parts, they could ask for a waiver.
“These waivers are being granted without enough forethought about what they mean,” Hunter told me. “If we’re going to allow Japan, an ally, to buy the F-35, why should we let them get those materials from China, which has failed to put its foot on North Korea and obstructs us in other ways?”
http://www.foxnews.com/opinion/2017/05/19/chinese-threat-in-sky-and-underground.html