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I found the following report that was presented to Congress recently about the shoulder launched missle threat to airliners , which this might very well be a precursor to : Recent events have focused attention on the threat that terrorists with shoulder fired surface - to - air missiles ( SAMs ), referred to as Man - Portable Air Defense Systems ( MANPADS ), pose to commercial airliners .
 airliners: target; missle: instrument
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:
 airliners: target; missle: instrument