The U.S. State Department said it believes reports of Eritrean troops entering the conflict in Ethiopia are credible despite denials from both nations. Also, a newly installed system of mobile artificial dams in Venice, Italy, failed to activate, leading to flooding in the city, and Jimmy Lai, a Hong Kong pro-democracy activist and media tycoon, has been charged amid a widening crackdown on dissent. CBS News foreign correspondent Debora Patta joined "CBSN AM" from Johannesburg with today's global headlines.