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Australia Hires Former US Secretary of Homeland Security to Advise on Cyber Strategy -
Hillary Clinton Drops Out of Event Featuring Tulsi Gabbard, Kirstjen Nielsen -
Kirstjen Nielsen and Other Trump Admin Blacklisted by Leftist Groups -
Smugglers Using Kidnapped Children to Get Migrants Into US Illegally -
Nielsen Visits Texas Border After Second Child’s Death -
Defense Secretary Mattis Visits Troops at Border With Homeland’s Nielsen -
Top US Officials Say Drones Increasingly Pose a National Security Threat