Your morning briefing, the business news you need in just 15 minutes.

On today's podcast:
(1) The 1.6 mile-long Baltimore bridge collapsed in a matter of seconds. The catastrophic consequences are set to stretch out for weeks.

(2) Japan stepped closer to currency intervention with its strongest warning yet as the yen slid to the weakest level in about 34 years against the dollar.

(3) As many as 8 million UK workers are at risk of losing their jobs to artificial intelligence with current government policy, the Institute for Public Policy Research warned.

(4) Cocoa futures surged above an unprecedented $10,000 a metric ton on Tuesday before erasing gains and taking a breather from a historic rally that has seen prices of the key chocolate ingredient double this year.

(5) Betting against former president Donald Trump's social media startup is one of the most difficult and expensive short trades in the market, according to financial analytics firm S3 Partners.