geneva unite nations refugee chief say wednesday big question regard 800,000 rohingya refugees bangladesh whether would allow return homeland filippo grandi u.n. high commissioner refugees say hop discuss statelessness rohingya myanmar officials geneva next week recognize complex issue clear cause crisis myanmar solution crisis also lie myanmar grandi tell news conference geneva return bangladesh call myanmar authorities end violence northern rakhine state solutions situation could discuss 480,000 rohingya flee northern rakhine since aug. 25 accuse army campaign violence u.n. call ethnic cleanse follow attack rohingya insurgents police post 300,000 rohingya previously cross neighbor bangladesh myanmar minister quote say wednesday yangon government manage redevelopment villages torch violence rakhine state since likely return take time happen violence stop important also find medium term suitable solutions people bangladesh grandi say call myanmar government implement recommendations commission lead former u.n. secretary-general kofi annan lack citizenship rohingya need address resolve say clearly people paper go back small number say think exercise go beyond really determine need national people allow go back give citizenship grandi condemn violence rohingya insurgents warn also obvious visit northern rakhine matter time terrorists would spring situation discrimination poverty prevail area say situation resolve risk spread terrorist violence whole region particularly fragile region high 'big question whether rohingya go home u.n. refugee chief