Persecution e.g.

China persecutes a group called Falan Gong (sp?) which is quasi-religious, and not approved by the government, as well as those Christian churches which are also not approved. Some are allowed. The Chinese government feels the need to control everything, and thus bans anything which has its own hierarchy. It allows a version of the Catholic church, but denies papal authority and appoints its own bishops.

As stated above, it is dissent, or behaving outside the box it stamps on, not Christianity particularly.

Penny