Hard Numbers: Is this the least fair impeachment?

50 billion: Iran has discovered a new oil field containing more than 50 billion barrels of crude oil, its president said, a development that could bolster its oil reserves by a third. However, the discovery is yet to be verified by an outside party, and it's unclear if Iran could sell any of this oil under the current US sanctions regime.

20: Turkey's interior ministry said it has started repatriating foreign Islamic State fighters back to their home countries, including 20 ISIS fighters from Germany, France, Ireland and Denmark. Ankara says it plans to deport 2,500 captured ISIS militants, mainly to Europe, but many of their home countries have been reluctant to accept them.

44: A new poll finds that just 44 percent of US adults believe the impeachment probe into President Donald Trump's withholding of aid to Ukraine is fair. Compare that with 49 percent and 55 percent for the Bill Clinton and Richard Nixon impeachments, respectively.

39: UK police have released the names of 39 Vietnamese nationals found dead in a truck outside London, a grisly case that's thrown a spotlight on the prevalence of human-smugglers who prey on people from Asia seeking a better life in Europe. Each year, about 18,000 Vietnamese people set out on this perilous journey.