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.