eating efforts to promote dialogue between the two koreas. frank smith reports. reporter: north korean defector, sending medicine to north korea and blessed bottles using ocece currents or four yearsrs. now following pyongyang's recent complaints, south korean officials have fililed to stop such activity, but he is undeterred. >> i don't know why thehe government is trying to stop this now. they should say there is nothing they can do. because this is a nongovernmental group activity. i think it would be wrong to suppress such organizations becaususe of what wawas said by north korea's leader. i am confused whether i live here in seoul or in pyongyang. reporter: his brother has been sending leaflets critical of the regigime by balloon ovever the border for more e than a dade.e. the two brothers fled north korea some 20 years ago and call for south kokoa to push h back