የኒዩክልየር ደህንነት ጉባኤTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNegash Mohammed26 መጋቢት 2008ሰኞ፣ መጋቢት 26 2008https://p.dw.com/p/1IPHAማስታወቂያ