IUPAP strongly supports the following statement:
Physics increasingly involves international collaborations that share in the planning, construction and operation of common apparatus and in the analysis of the resulting data. Such collaboration is most successful when all collaborating scientists have unimpeded access to both physical facilities and to the data that results from their common efforts. We observe a disturbing international trend of restriction of access to facilities, shared data and methods of communication. While nations have legitimate needs to protect their critical facilities and computing systems, they also have a responsibility to find ways to maintain and facilitate access for all international scientific collaborators.
IUPAP appreciates if the above statment could be circulated among other international scientific collaborators and government bodies to spread awareness on the subject and initiate change.