It is not trickle down economics. It is a scam and I will explain why. The fed is made up of the same banks that the mortgages are coming from. Except the fed is not buying the mortgages it is buying securities on these mortgages. So basically they are buying what amounts to stocks on assets that they already own and both of those in the end will be paid for by the taxpayer with interest of course. All this is going to do is further devalue the US dollar. The fed is loaning itself basically 45 billion dollars a month for the securities and an additional 35 billion per month for other things. The only thing giving the dollar some sort of value is the fact that it is the world's reserve currency. For people who do not know what this means, it means that every country must purchase crude oil with the US dollar. The problem is that there is a shift happening where some countries are using gold or their own currencies to purchase crude oil. If this becomes a larger trend then the US dollar will become valueless and if this happens it ill go the way the zimbabwe currency went.