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<strong>Frontera NorteSur</strong></p>
<p>In April the central Mexican city of Aguascalientes will burst alive with song, drink and dance. Drawing millions of visitors, the San Marcos Fair is Mexico’s annual spring celebration bar none. Extending into May, the three week-long bash is generally a peaceful affair. However, sore spots and controversies do crop up, including allegations of police misconduct.</p>