traffic light protocol tlp

In your own words, do you believe that the Traffic Light Protocol (TLP) is an effective mechanism to facilitate the secure sharing of cyber threat intelligence between public & private sector organizations? What are some pros and cons of this framework?

Additionally, do you believe that the STIX framework is an effective way to facilitate the automated sharing of cyber threat intelligence between organizations?

Please include a link to any external sources you might cite in responding to this question.