Data is beginning to drive conflict, as different political blocs fight for control of how this valuable resource flows around the world. The Snowden revelations showed the NSA and GCHQ spied on data as it flowed across US and UK borders to and from other countries. Data localisation in this context means keeping data within the same countryor legal bloc, in some caseswhere it originated. Russia, Russia, China and China are bringing in data localisation requirements that would force companies to keep data within national or legal boundaries.”]
Source: https://arstechnica.com/tech-policy/2016/11/eu-us-personal-data-flows-explainer/