wall street journal that recent hits at a bay year nordstrom louis vitton store in san francisco and best buy in minnesota appear to have been organized on apps like snapchat where messages can be scrubbed. though a company spokesperson tells fox it s, quote: looked into these reports and haven t yet found evidence of it happening on snapchat aggravated such activity would violate their guidelines. still, along with stepped up prosecutions industry leaders are calling for greater transparency online. we have got to marry the trend with smartest policy online to make it harder to operate in the shadows. third party sites like amazon marketplace where sellers can remain anonymous are coming under increasing scrutiny as police try to crack down on brazen organized crime that s costing american retailers an estimated $70 billion a year up