Senior State Department officials said Wednesday they have been given a warm reception at the Kampala review conference of the International Criminal Court, which they are attending as observers. It is another sign of U.S. re-engagement with the 12-year-old ICC, which was rejected by the Bush administration. Former President Bill Clinton signed the Rome Statute setting up the ICC. But the treaty was never sent to the U.S. Senate for ratification amid conservative concern about politicization and judicial over-reach by the court, and the Bush administration rescinded the U.S. signature in 2002.