Super Mega conglomerate dittos TM7.
Interstate banking practices caused the first great depression ,and our leveraged economy (economy built on borrowed money) is what is killing us today.
When banks loan money to people who probably cannot repay the loan, only so they have the ability to drive borrower's indebtedness up by exhorbitant interest after they default (enslaving them to creditors), you get what we've got.
By its very nature, excessive leverage exacerbates economic cycle extremes.
Just wait until we see the Brazillian/Mexican style inflation that is coming, resulting from the CBO estimates of 23 trillion added federal debt under the Obama administration watch, the result of the "bailout". Though it has been the current administration that has committed the vast majority of these funds, the next 25 democrat presidents will cut their teeth on "it's all Bush's fault".