"For people who are really wealthy, inheritance tax has become an optional choice," said John Christensen, director of the Tax Justice Network.
Though he is a member of a wealthy family and received about $1 million a year until he was cut off in 1994, Mr. bin Laden never received the $300 million inheritance that has become the stuff of folklore, the report said.
Even so, the inheritance tax break has become pricier than anticipated.
One of Williams's key moves was to insist that culture meant not just eminent works of art, but a whole way of life in common; and culture in this sense - language, inheritance, identity, religion - has become important enough to kill for.
Due to the high copy number of mtDNA in cells, their comparatively fast molecular evolution and their strictly maternal inheritance, over the last two decades mtDNA has become a valuable tool for phylogenetic and phylogeographic studies using ancient DNA analyses.
And because such testing provides positive proof of family continuity, it has become indispensable in inheritance disputes and in cases of disputed paternity, for example when the child support agency needs to determine liability.
The phenomenon has become known as doubly uniparental inheritance (DUI) of mitochondrial DNA (mtDNA) [1].
And, consequently, the contest between families for the allegiance of children has become inevitably intertwined with struggles over inheritance rights.
Mr Buffett has become a crusader for a higher inheritance tax, arguing that America risks an entrenched plutocracy without it.
Since complete genomes have become available, it has become clear that, in addition to vertical inheritance, there is a substantial rate of horizontal gene transfer (HGT) from unrelated individuals, at least in prokaryotes.
