Hundreds of people have reportedly been killed in Sudan as fighting continues between Sudan's rival armed forces. The fighting has also damaged health facilities, making it difficult for health workers to help those caught in the crosshairs. And, Brazilian President Luiz Inácio Lula da Silva recently said that Kyiv and the West share some responsibility for the conflict in Ukraine, creating tension between Brazil and the US. Also, new publicly available artificial intelligence tools are making it easier than ever for people to create art. These AI-generated songs, photographs and entire interviews all come with a range of ethical questions. Plus, re-creating the resilience of Roman concrete.