U.S. House Speaker Nancy Pelosi, long a fierce critic of Beijing, toured China's financial capital on Monday but stayed clear of human rights issues, though her presence emboldened protesters.Pelosi's silence — at least in public — is especially notable since her visit comes a week ahead of the 20th anniversary of the 1989 crackdown on the Tiananmen Square democracy protests. During a 1991 visit to Beijing, she unfurled a banner that read "To those who died for democracy in China" in the square...

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