geneva unite nations yet determine whether violence rohingya muslims myanmar meet legal definition genocide jyoti sanghera asia pacific chief office high commissioner human right say wednesday u.n. high commissioner human right zeid ra ad al-hussein call situation textbook example ethnic cleanse use word genocide yet look legal boundaries sanghera say could meet boundaries yet make legal determination ohchr u.n. team take witness statements rohingya refugees last month another human right mission currently grind gather evidence 582,000 rohingya flee bangladesh last two months testimony gather team refer unspeakable horrors sanghera tell audience geneva graduate institute even speak even world witness horrific spectacle massive force displacement suffer hundred thousand rohingya think remain myanmar northern rakhine state say refugees describe massive detention systematic rape myanmar security force deliberate destruction rohingya villages people could return deliberate target cultural religious leaders aim diminish rohingya history culture knowledge say imams beard shave burn women girls rap inside mosques refugees say non-rohingya neighbor give weapons uniform work concert security force unsettle post-colonial question tensions fuel colonial power past exploit military junta myanmar keep ethnic rivalries simmer sanghera say systematic acute discrimination rohingya muslims continue keep alive democratically elect government aung san suu kyi point refer recently high commissioner human right ethnic cleanse entire people designate rohingya victims genocide 1948 u.n. convention would increase pressure international community take action protect could expose myanmar officials great threat international justice u.n. convention pass wake nazi holocaust require countries act prevent punish genocide define number act commit intent destroy whole part national ethnic racial religious group one four categories crimes subject jurisdiction international criminal court hague u.n. say still determine myanmar crisis genocide