North of Bakhmut, another key battle tests Ukraine

In a small house in a badly bombed village in eastern Ukraine, Battalion Commander Andrii "Tuman," who goes by his call sign meaning "fog," leads his troops. What Ukrainian forces have long described in the city of Bakhmut is also playing out to the north in Luhansk region - more Russian troops, weapons and aggressive tactics that Moscow hopes will produce a badly needed breakthrough. Tamara Lindstrom reports.