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1
Somebody who was born in this country who visited China would later face difficulty getting back in to the USA. We have to keep in mind that the struggles of the Chinese against these exclusion laws really laid down the foundations of civil rights law.

2
It's much more difficult to work on a broad subject than on a specific one, because even if it's hard to find the information, if you look hard enough for something specific you will find it, and you will discover things that you wouldn't have thought of before.

3
Racism is always there underneath, but usually it is exploited in these times of economic crisis, and it's hard to find out when one slides into another.