B1/B2签证,美国他们真欺负人

俺和俺认识的朋友都在加拿大读研究生，结果就只给三个月单次入境的旅游签证，还送去华盛顿查了三星期（好象不少人都受到此优待），且明确告知以后只会给同样的签证, 非常不方便，以前都还给过较长时间的多次入境。签证处还找了各种理由搪塞，什么由于美中政府高层的原因等等，结果在GOOGLE上一查，原来是限制敏感科技外流，他们对去美国读书的中国学生这样做就算了，我们又不在他那上学，只去玩，实在是八竿子打不到他的科技。他们害怕中国政府采取报复性措施，所以都是玩阴的，不敢张扬。在此贴出来，只是希望大家有所了解。真希望中国也对美国游客采取同样的限制!!!

http://foia.state.gov/masterdocs/09FAM/09G0500.PDF

Nationals of China and Russia:
• Visa for multiple entry/12 months for F and M visas (if allowed by reciprocity schedule)
• Visa for multiple entry/6 months for H, J, L, O and P
• Visa for single entry/3 months for B-1/B-2, A and G

9 FAM 504.1 What is a Visas Eagle?
(CT-813; 06-07-2006)
A Visas Eagle is a request for a name check and clearance by other Washington, DC agencies for certain nationals and is generally for (NIV) applicants. It does not involve a Department SAO. Similar to procedures for other clearance requests, cases pending Visas Eagle response must be
suspended (refused 221 (g)) until a response is received. Currently, Visas Eagle requirements apply to certain nationals of Cuba, China, Iran, Russia and Vietnam. You can obtain detailed information in the individual country’
s Special Processing Requirements.