Morgan Stanley is loosening the chains on their all-important brokers: They are finally allowing them to tweet their own messages. Morgan Stanley is the first of the large United States brokerages to lift this social media limitation. While they have allowed employees to send self written messages on LinkedIn since July 2012, tweeting was limited only to scripted tweets prepared by the company. The brokers could then tweet the scripted message. Now, brokers will be able to tweet (almost) on their own.