researchers, drug companies, and governments to push for in the sid new treatments to fight dementia -- ive newoses -- elus treatments to fight dementia. >> turning now back to our top story, the massive memorial held today for nancy left -- four nelson mandela. elouier today, maya anglo spoke to the bbc from her home. >> his day is done. the news came on the wings of a wind reluctant to carry its burden. .elson mandela's day is done >> you appear to be trying to draw out universal values -- in particular, an emphasis on forgiveness. >> yes, he was able to forgive 27 years of unjust imprisonment, to the extent that he actually invited the guards who had guarded him to his inauguration as president. say, "look at how great i am," to say, "i have completely forgiven you." that was a great gift. kind of to have that ability, you have to have courage, and in order to have courage, you have to have love. that was a great it that he gave . had it not been for his ability to forgive, the streets of south africa would be running in blood. would the man survived? could the man survived? his answer strengthe