Ugandan authorities are holding 20 people in connection with a plot to blow up the U.S. Embassy in Kampala, and the FBI was invited into the East African nation to help with the investigation, this according to a Ugandan government official. He said Ugandan intelligence officials had learned that the group that carried out the bombings in Nairobi and Dar es Salaam also planned to attack the U.S. Embassy in Uganda. The Washington Post is also reporting that American intelligence officers helped thwart the plot, saying Ugandan authorities were aided by information from the CIA. Over the weekend, security officials said 18 people had been arrested in connection with plans to hit American and Ugandan targets in the country. It was not clear when the other two people were arrested.