The US has a 'thirst' for immigrant workers. Why do so many struggle to get legal status?

President Joe Biden has said that changing immigration law remains an important piece of his agenda. But the path to new legislation is complex and hardly clear. One of the biggest flashpoints in this debate are questions about undocumented workers and their role in the economy. Paul Solman dives into those questions for his latest report for "Making Sense." PBS News is supported by - https://www.pbs.org/newshour/about/funders