The following is just a sampling of the financial warnings that we have seen in recent days from some prominent voices.... *Economist Nouriel Roubini: "I think right now we're on the tipping point of a market correction. Data from the U.S., from Europe, from Japan, from China are suggesting an economic slowdown." *Jim Rogers: "I would expect to see some serious problems in the foreseeable future….By 2011, 2012, 2013, 2013, I don't know when, we're going to have an economic slowdown again." *Mark Mobius, the executive chairman of Templeton Asset Management's emerging markets group: "There is definitely going to be...