A South African police spokesman told the BBC that Mandla Mandela was being investigated for allegedly illegally tampering with gravesides two years ago. Mike Woodridge reports.

南非警方发言人告诉BBC，曼拉·曼德拉涉嫌两年前擅动墓地，目前正在接受调查。迈克·伍德里奇报道。

Radiation is now the unnatural creation of man's tampering with the atom. The chemicals are the creations of man's inventive mind, having no counterparts in nature.

辐射现在是人类篡改原子的非自然产物。化学品是人类创造性思维的产物，在自然界中没有对应物。