1711
perhaps with that in mind , the nation ' s threat level back at orange , or high , to discourage and thwart potential terrorist attacks .
 terrorist: attacker
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: attack 
  Option: victim, attacker, place, target, instrument 
Text: {0} 
Answer:
 terrorist: attacker