Tens of thousands of people in Mozambique are being rescued as rising waters continue to devastate the southern African nation - the worst flooding in a generation. Teams from Brazil, South Africa and the UK have been helping with life-saving rescue operations. "For me, this is the first time I have experienced a calamity of this magnitude. Elders say a similar disaster took place in the 1990s," 24-year-old mechanic Tomaz Antonio Mlau says. Mlau and his family, who live near Marracuene - a town