As Apple CEO Tim Cook insists that his company should not be forced to help the FBI weaken security on an iPhone (Not sure why that matters? Get an explanation of the key issues here.), a few more companies have stepped forward in support. Yesterday Google CEO Sundar Pichai issued a carefully-worded statement, followed today by a statement from Facebook to USA Today, and a one-liner from Twitter CEO Jack Dorsey. Facebook said that requirements to weaken security would create a "chilling precedent," while Dorsey simply said that he stands with Cook and Apple.