Cbs: Investiages

• Why U.S. law enforcement struggles to combat online romance scams

  Local and federal authorities face challenges in investigating and prosecuting romance scammers because the scammers are often based overseas. Jim Axelrod explains.

• "Blind trust": Widow's $1.5 million romance scam story serves as cautionary tale

  A widow looking for love was scammed out of $1.5 million before her tragic death. Her daughter is now on a mission to share her mom's story, hoping it spurs change.

• Hundreds of Jan. 6 defendants accused of assaulting police officers

  A CBS News review has found that hundreds of Jan. 6 defendants have been accused of assaulting members of law enforcement during the attack on the U.S. Capitol. Former President Trump's comments praising them as "patriots" and calling them "hostages" have some police officers and Homeland Security analysts concerned. Scott MacFarlane reports.

• A look at impact protection for bridges after Key Bridge collapse

  Could anything have been done to prevent the collapse of the Francis Scott Key Bridge? Investigators say the bridge did have some kind of impact protection, but CBS News has learned that a majority of U.S. bridges do not. Stephen Stock has more.

• Candy company Mars uses cocoa harvested by kids in Ghana, CBS News investigation finds

  CBS News found children in Ghana as young as 5 years old using machetes nearly as big as themselves to harvest the cocoa beans that end up in some of America's most-loved chocolates like M&Ms and Snickers. Debora Patta reports.