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Israeli ground forces have crossed into southern Lebanon, marking an important new escalation of their offensive against the militant group Hezbollah. Israel is calling the incursion a 'limited ground operation', and was backed by airstrikes and artillery fire. Up to one million people in Lebanon have been displaced. We speak to a United Nations official who helps refugees in the region. We also speak to a former Israeli minister and senior commander in Israel's war in Gaza.

In the United States, about 45,000 workers on the Gulf and East coasts have began a strike after a breakdown in union talks.

Tributes are pouring in for Dikembe Mutombo, former NBA basketball star who has died at the age of 58 from brain cancer.

There is a warning that one of the worst famines in decades could soon take hold in Sudan following a year and a half of brutal civil war there. We have a special report from near the capital, the scene of intense recent fighting.