Actually, there is a big difference between spying and surveillance, but this should be expected.
Two Chinese fighter jets crossed an unofficial dividing line in the Taiwan Strait late last month in pursuit of a US spy aircraft, according to defence sources in Taipei and Beijing.China feels it loses face every time we exercise our unique capabilities. They push too hard sometimes - but we aren't going to stop.
The incident marked the first time in more than a decade that Chinese military aircraft have entered Taiwan’s side of the 180km-wide strait. According to Taiwan’s defence ministry, two Chinese Su-27 fighter jets briefly crossed the so-called “middle line” on June 29.
Admiral Mike Mullen, the chairman of the US joint chiefs of staff, told reporters in Washington that the US would "not be deterred from flying in international airspace". He said: "The Chinese would see us move out of there. We're not going to do that, from my perspective. These reconnaissance flights are important".We like to watch and ponder. That is good.
One final side-bar; once again you have to go to the British press to get anything good on this. Our major media on such topics, in a word; blows.