回复：请教：计划明年三月份去英国参加一个会，去英的签证和回美国的

You can apply a UK visa in an UK consulate. It is very easy.
To my knowledge, you can not get a US visa in UK. You have to apply it either in China or in Mexicao/Canada borders cities.
As for the security check, nobody can gaurantee. But currently, it only takes about 4 weeks.

所有跟帖： 

• 多谢！提前多长时间去合适， 就是说拿到签证后有效时间是几个月？ -sun105- ♂ (156 bytes) () 10/31/2006 postreply 17:41:54

• 他的意思是你不能在英国申请回美国的签证，回中国等security check -poiuy- ♂ (23 bytes) () 10/31/2006 postreply 18:56:37

• 或是在加拿大或墨西哥先签好回美visa,否则在美国签英国visa都有困难 -xiaobaitu- ♀ (0 bytes) () 10/31/2006 postreply 20:40:15

• Make sense. do you know how long the security check will take no -sun105- ♂ (17 bytes) () 11/01/2006 postreply 08:59:33