BBC: Bolivian President Evo Morales has declared a national disaster as his government tries to cope with the aftermath of widespread flooding. Floods caused by weeks of rain have left 51 dead in the eastern lowlands. Mr Morales on Monday toured the worst-hit province, Beni, where thousands of people have had to leave their homes amid rising floodwaters. It is the second year in a row that Bolivia has seen such floods, which officials blame on climate change. The …