Pope Leo XIV leaves the Vatican for the Agostino Gemelli Polyclinic in Rome, Tuesday, Oct. 13, 2026, where he's expected to be operated to remove a lung nodule. (AP Photo/Andrew Medichini)

An image of Pope Leo XIV rests at the base of a statue of the late Pope John Paul II outside the Agostino Gemelli Polyclinic, where Leo is hospitalized for surgery to remove a lung nodule, in Rome, Tuesday, Oct. 13, 2026. (AP Photo/Gregorio Borgia)

Director General of MI5 Ken McCallum speaks at Thames House, the headquarters of the UK's Security Service in London, Tuesday Oct. 13, 2026. (Jonathan Brady/PA via AP, Pool)

Director General of MI5 Ken McCallum speaks at Thames House, the headquarters of the UK's Security Service in London, Tuesday Oct. 13, 2026. (Jonathan Brady/PA via AP, Pool)

Director General of MI5 Ken McCallum speaks at Thames House, the headquarters of the UK's Security Service in London, Tuesday Oct. 13, 2026. (Jonathan Brady/PA via AP, Pool)

Director General of MI5 Ken McCallum speaks at Thames House, the headquarters of the UK's Security Service in London, Tuesday Oct. 13, 2026. (Jonathan Brady/PA via AP, Pool)

Director General of MI5 Ken McCallum speaks at Thames House, the headquarters of the UK's Security Service in London, Tuesday Oct. 13, 2026. (Jonathan Brady/PA via AP, Pool)

A slider showing the reduction in air traffic around Riyadh after Houthi attacks on the airport. (AP Digital Embed)