BN Daybreak: PIC executive exodus; South Africa House shut in London; US interest rate hikes

In today's BizNews Daybreak, US-Iran tensions steady oil and Korean tech stocks slide. Fed Chair Kevin Warsh defends his personal trading, while South Africa's PIC faces a deepening executive exodus. We also unpack more on the DA’s Tony Leon lobbying scandal, the temporary closure of London's SA House, and a blunt warning from KPMG's Diane Swonk that persistent US inflation demands two interest rate hikes.