Swat teams tackle gun violence in Philadelphia

President Obama has set off on a three day trip around the USA to try and win support for the plans he announced during his State of the Union speech. Among them, his emotional call to limit arms, in response to the recent atrocities across the country.

Police units in cities all over the US struggle to cope with the number of deadly weapons on their streets. In Philadelphia, officers rely on specialist swat teams to support units who regularly get 'out gunned' working in the inner city.

Death from gun crime continues to soar across Philadelphia, wreaking havoc on communities. Washington Correspondent Robert Moore reports.

Read: President Obama demands Congress vote on gun reform

More: Obama issues emotional call to limit arms

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Obama vows gun reform vote

President Obama has demanded that Congress vote on gun reform during his State of the Union address, but stopped short of announcing a bill on gun control.