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Whisteblower Edward Snowden had previously leaked documents in 2013 that alleged the NSA had carried surveillance of the Brussels - based Society for Worldwide Interbank Financial Telecommunication ( Swift ) for several years , but did not specify how .
 Whisteblower Edward Snowden: attacker; documents: compromised data; 2013: time
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: data breach 
  Option: victim, attacker, attack pattern, purpose, damage amount, tool, time, place, number of victim, compromised data, number of data 
Text: {0} 
Answer:
 Whisteblower Edward Snowden: attacker; documents: compromised data; 2013: time