EMP trial run?
Per a link at MSNBC: ContrailScience.com, a website that debunks conspiracy theories linked to contrails, suggested the sighting was an optical illusion.
OldMissileer: “That is a sub launched ballistic missile and it looks as if its’ trajectory was taking it toward Kwajalein Atoll where we target our western test launches.”
http://www.freerepublic.com/focus/news/2624382/posts?page=47#47