As prosecutors from the US House made their case for the impeachment of former President Donald Trump, security was on high alert in Washington. There are more police and National Guard and access to the Capitol building is tight — but how long will this continue? And, opposition activists and lawmakers are demanding that Haitian President Jovenel Moïse step down. Also, an ancient conch shell thought to be a drinking vessel has now been determined to be a musical instrument — the earliest known conch shell horn.