Increased security measures have been implemented in U.S. cities following a deadly attack in New Orleans and an explosion in Las Vegas.
Police in Washington ramped up security in anticipation of upcoming public events, including a state funeral and a presidential inauguration.
The FBI is investigating links between the New Orleans incident, where a veteran used an Islamic State flag, and the Vegas explosion outside a Trump hotel.
Authorities are deploying significant resources, including National Guardsmen and law enforcement, particularly around public venues like the Superdome.
Major cities like New York have heightened police presence with no specific threats identified, but remain on alert.
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