the u.s. central bank is hoping to kick start america s sluggish economy by selling $40 billion of short-term treasuries in exchange for the same amount of longer-term bonds. the idea is to push long-term interest rates lower even though they re already at record low ts. those are the headlines from cnn, the world s news leader. world business today starts now. hello, and a warm welcome to world business today, i m manisha tank in hon con. i m nina desantos. the stock markets take a tumble. troubled tech giant hewlett packard could be about to give is boss a boot after barely a year in the job. i feel terrible. can t sleep at night because you re thinking how are you going to pay for the family s bills. not being able to pay your bills for five months. in sfan the public sector workers are taking matters into their own hands for now. let s kickoff with the markets. the only thing you can be certain of is uncertainty itself. yet again more wild swings on stock