The Org sanctions elders in Chile to hang the national flag from Kingdom Halls annually, but has a problem with Rwanda's law for newly-weds to hold a flag as they get married.
"Jehovah’s Witnesses in Rwanda, and as a worldwide organization, express concern for human rights violations as outlined above. They respectfully request the government of Rwanda to take the necessary steps to: Permit Jehovah’s Witnesses to take the marriage vows in civil ceremonies or oaths without being forced to hold the national flag;"
http://tbinternet.ohchr.org/Treaties/CCPR/Shared%20Documents/RWA/INT_CCPR_ICO_RWA_20908_E.pdf