New acting president for Nigeria Nigeria's Vice-President Goodluck Jonathan becomes acting president in place of ailing leader Umaru Yar'Adua. Honda in US recall over airbags Honda heaps more woe on Japanese carmakers by adding 378,000 cars to an existing airbag safety recall in the United States. Google takes on Facebook Google takes the wraps off its latest social network - known as Buzz - pitting it directly against rival sites such as Facebook and Twitter. Lebanon warns of Israel 'threat' Lebanese Prime Minister Saad Hariri says he is concerned about the "escalating and dangerous" threat posed by Israel. Sri Lankan parliament dissolved Sri Lanka's President Mahinda Rajapaksa dissolves parliament to set up early elections, a day after his main rival was arrested.