The liberal international order

How is the liberal international order expected to change (or changed) in the 21st century? Why maintaining the international liberal order can be considered a global issue? As you answer this question keep in mind Gordon Brown's talk on the need for global good.

https://www.ted.com/talks/gordon_brown_wiring_a_web_for_global_good?utm_campaign=tedspread&utm_medium=referral&utm_source=tedcomshare