This is the Global News Podcast from the BBC World Service.

I'm Bernard Ekio and in the early hours of Wednesday, the 24th of July,

these are our main stories. The director of the US Secret Service

has resigned after facing sharp criticism for her agency's failure to

prevent the assassination attempt on Donald Trump.

Carmelah Harris has promised to bring the fight to Donald Trump

in her first rally since becoming the Democrats presumptive nominee for President.

A major rescue operation is underway in the remote

South Atlantic after almost 30 people aboard a fishing vessel had to abandon

their sinking ship. Also in this podcast, this is the first time that actually

cocaine has been detected in the muscle of sharks. We've detected it in other animals before but this is at a higher

concentration than you see in in other animals. Sharks off the coast of Brazil

tests positive for cocaine.

We begin in Washington where Kimberly Cheetel has caved into intense pressure and resigned as director of the US Secret Service after admitting to a colossal

failure for not preventing the attempted assassination of Donald Trump 10 days ago.

On Monday she failed to give lawmakers at a congressional hearing the answers they

wanted during fiery exchanges. Miss Cheetel even appeared determined to stay in post

when she was questioned by the Democrat congressman Roquehanna.

Would you agree that this is the most serious security lapse since President Reagan was shot in 1981 of the Secret Service?

Yes, sir, I would. in 1981 of the Secret Service?

Yes, sir, I would.

And, you know, do you know what Stuart Knight did

...