. >>> nelson mandela is back at home in joe hannis burg tonight -- johannesburg tonight.ambulance took the president home where he was in the hospital for months for a recurrent lung infection. he'll receive the same level of intensive care from the same people who treated him. >>> closer to silicone valley, they say they will fight the fed's decision to shell the planned patent office in north carolina california. the feds have no choice but to strap the plan due to sequestration. the office was to be paid for by the $2.8 billion collected from inventors and companies. san jose is the top producing patent city with more than 7,000 last year. >>> several stores are slashing iphone prices. best buy, radioshack and walmart all all eye 16 gigabyte iphones. we were expecting to reveal the latest version on september 10th. >>> the field early government -- federal government is upset by a tie 30. >> and the new way advertisers will be able to pitch their product. >> since city under siege, as las vegas facing devastating flash floods. >> and clouds continue to move into the ba