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Heidi Zhou-Castro

United States

US: New study links ‘light cigarettes’ directly to cancer

Researchers have found that so-called 'light cigarettes' may be behind an increase in lung cancer cases. Al Jazeera’s Heidi Zhou Castro reports.

US & Canada

$4tn plan to eliminate US budget deficit faces scrutiny

A budget plan released by the White House aims to eliminate the US budget deficit after 10 years.

United States

Most famous US circus performs for last time after alleged abuse

The finale came after massive protests against the circus' alleged mistreatment and abuse of animals used in their shows.

US & Canada

US judge to hear case against Trump sanctuary city policy

In its first legal test, a San Francisco judge is set to consider whether to temporarily block US President Donald Trump’s executive order to strip federal funding from so-called sanctuary cities.

US-Mexico border

Trump's border wall faces legal battles over private land

Before construction of President Trump's wall on the US-Mexico border can begin, the government must acquire land.

US-Mexico border

US-Mexico border wall raises environmental concerns

The first formal step towards building a border wall between the United States and Mexico will soon be taken. A solicitation order is expected, inviting companies to submit plans.