This is the same law that applies to those high school students who say "someone should get rid of Bush" or people who made verbal comments that sounded threatening to Clinton.
Since 1963, the law has been very strict about this. No one is making a special example of this woman. I will agree that the law may be too stringent, but it is what it is.
A.This is a serious international incident with two opposing interests involved. One is advocating freedom and a cesation to torture and political murder. The other sells cheap crap at Wal-Mart and arms our enemies. Bush apologized to the representative of the later interest.
B. The woman did not threaten the safety of Hu. She threatened his government's future political viability. There is no other way for a rational person to interpret her "threat". BTW, "you suck" is not a threat either: it is an expression of discontent- you know, per the First Amendment?
She must be released immediately.