| Citigroup plunges on uncertainty [21 mins][Kansas] Shares in Citigroup, one of the biggest banks in the US, fell sharply on Friday amid ongoing uncertainty over its future. | Renovated American history museum reopens (AP) [48 mins] AP - George and Martha Washington, Dorothy from "The Wizard of Oz" and other costumed characters greeted thousands of visitors Friday as the National Museum of American History reopened after a two-year, $85 million renovation. |