Alerts from the national terrorism advisory system apply only to the united states and its possessions t/f

Alerts from the national terrorism advisory system apply only to the united states and its possessions is true.

Explanation:

"National terrorism advisory system" (NTAS) is a scale that is used by the US government to rate the terrorism threat since 2011. NTAS is formulated in replacement of 'Homeland security advisory system'. In 'homeland security advisory system' (HSAS) there were four levels slow, guarded, elevated, high, and severe. USA had attack in September 11, 2001 and about 3000 people were died. After the attack the government of USA formulated HSAS and NTAS was officially imposed from January 27, 2011 by ending the old HSAS.