America said that their RC129 was on routine mission over east Chinese sea. You will also glad to know that china is building artificial islands in sea and transporting it’s nuclear weapons and submarines to artificial islands which shocker US. China is becoming the super power of the world day by day and US does not want to lose it’s position. That’s why there spy jet was on a routine mission. Chinese J-10 was never nearer than a hundred feet to the U.S. aircraft, however it flew with a “high rate of speed because it closed in” on the U.S. aircraft, one official aforementioned. as a result of that top speed, and therefore the truth it absolutely was flying at an equivalent altitude because the U.S. plane, the intercept is outlined as unsafe.