Description:It may not inspire the same fanfare as the Consumer Electronics Show in Las Vegas, but CeBIT in the German city of Hannover is the world's largest technology fair. The German Chancellor Angela Merkel took a break from discussing countries whose finances are under water to look at a tablet computer that can be entirely submerged and survive. Liquidity of another sort was on the agenda with Brazil's President Dilma Rousseff who made the trip to the northern German city to help open the event.(1:54)