7. Ecumenical cooperation can be realized in every aspect of social communication. It is in itself a witness offered to the world. Because the mass media reach beyond the normal limits of space and time, this cooperation will be at one and the same time local, regional and international. At times, it will require the reciprocal participation of Catholic communicators in the communications initiatives of other Churches and Christian communities, and of other Christians in Catholic projects, as well as the formation of Christian working groups within secular communications organizations.