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Malaysian riot police form a barricade to stop protesters in Kuala Lumpur, Malaysia, Saturday, April 28, 2012. Malaysian police fired tear gas and chemical-laced water Saturday at thousands of demonstrators demanding an overhaul in electoral policies that they call biased ahead of national polls expected soon. At least 25,000 demonstrators had swamped Malaysia's largest city in one of the Southeast Asian nation's biggest street rallies in the past decade. (AP Photo/Mark Baker)

25,000 rally for Malaysia reforms

Police unleashed tear gas and chemical-laced water Saturday, April 28, at thousands of demonstrators who staged one of Malaysia's largest street rallies in years, demanding fair rules for national elections expected soon.