Duh.
[url]http://www.warroom.com/china/arsenal.htm[/url]
Chinese fighters carry Israel´s potent Python 3 heat-seeking missile, a weapon painstakingly developed by Israel based on the venerable Sidewinder missile that the United States sold to the Jewish states decades ago, say former intelligence officials. Reconnaissance photographs of Chinese F-8 fighters intercepting, and in some cases harassing, U.S. patrol planes clearly show the fast, short-range Pythons affixed under the fighters´ wings.
[url]http://www.nti.org/db/china/imisr.htm[/url]
China's Missile Imports and Assistance From Israel
China's missile-related imports and assistance from Israel have been a subject of particular concern in the United States because of worries that Israel may be providing China with "back door" access to controlled, sensitive US technology. For example, in the early 1990s, reports surfaced that Israel had secretly transferred information on the US Patriot missile system to China, in violation of Israel's promise to the United States not to transfer the Patriot technology to any third country. Although both China and Israel denied the allegations, US government sources concluded that it was almost certain that a transfer of technology (though not physical equipment) had taken place.
[url]http://www.ety.com/HRP/pol/china.htm[/url]
"The Defense Intelligence Agency suspects Israel shared with China restricted U.S. weapons technology obtained during a joint U.S.-Israeli effort to build a battlefield laser gun," writes Gertz on Jan. 27. U.S. employees have twice "spotted Chinese technicians working secretly with one of the Israeli companies involved in the laser weapon program." A Chinese official in Israel exhibited hard knowledge of the super-secret program to build lasers to shoot down the Katyusha rockets used by Hezbollah on Israeli towns.
[url]http://www.taiwandc.org/twcom/89-no5.htm#notes[/url]
Israeli sale of long-range radar to China
In the beginning of November 1999, both the New York Times and Aviation Week and Space Technology reported that Israel was preparing to sell an advanced airborne radar system, Phalcon, to China. The system was being built into a Russian-built aircraft, which had arrived in Israel at the end of October 1999.
[url]http://www.globalcontrol.org.uk/page45.html[/url]
[An internal DIA memo] alleged that Israeli agents stole "proprietary information" from an Illianois optics firm in 1986 and test equipment for a radar system in the "mid-1980s." The memo also repeated previously publicised charges - denied by Israel and never officially proven by US investigators - that Israel may have provided China with sensitive fighter jet technology obtained from the United States.