private void broadcast(Command command) {
		List<ICallbackClient> m_clients = m_subscriber.getClients();
		for (int i = 0; i < m_clients.size(); ++i) {
			try {
				m_clients.get(i).pushMessage(command);
			} catch (RemoteException e ){
				e.printStackTrace();
			} catch(InterruptedException e){
				e.printStackTrace();
			}
		}
	}