Celebrating a decade in power – and making it plain he wants to carry on – Venezuela’s leader Hugo Chavez has attended a special ceremony, surrounded by some of his closest regional allies. The president announced a new public holiday to mark his 10 years in office. Chavez said: “How the people sing today. How our people sing. Watch out! Watch out! The sword of Bolivar advances through Latin America.”The ceremony took place at the tomb of Simon Bolivar, the 19th century revolutionary leader who ousted Spain from the region. The celebrations come as Chavez seeks to win a highly contested referendum this month on his plan to run for a fourth term as president.