President Barack Obama will release a comprehensive new US Africa strategy Thursday, seeking to boost trade, strengthen peace and security and bolster democratic institutions. The blueprint will notably seek to encourage the "stunning" potential of economic growth to lift millions out of poverty in a continent more often associated with famine, poverty and strife, a senior US official told AFP. The plan will be unveiled nearly three years after Obama, the son of a Kenyan father, laid out his priorities for the often crisis-scarred continent in Ghana, on the sole trip of his presidency so far to sub-Saharan Africa. Obama...