With the last global financial crisis being more than a decade ago and stock markets now wobbling amid trade uncertainty, another economic downturn may be imminent. With Europe's giant investment banks in retreat, Wall Street banks, who have better recovered since the 2008 crash, look set to take their place. Amid trade and geopolitical uncertainty, the future poses challenges for lenders but the US banks are much better placed to deal with these challenges, says Tim Marshall. Watch the latest edition of Sightline above.