Joseph Kabila was sworn in Tuesday for another term as president of DR Congo.The 40-year-old incumbent was last week confirmed the winner by the Supreme Court, which the opposition says he packed with loyalists just before the Democratic Republic of Congo's November 28 polls.The results of the chaotic vote were criticised by observers and rejected by opposition leader Etienne Tshisekedi, who has proclaimed himself the people's president and is planning his own inauguration on Friday.The European Union's foreign affairs chief Catherine Ashton also pointed to "serious deficiencies" in the vote and said the bloc would "re-evaluate its support come the next stages in the Congo's democratic process".Kabila, after taking the oath before a large crowd of supporters but only a handful of foreign dignitaries, vowed to "safeguard national unity" and to be guided by the general interest and respect for human rights.