Episode 45 - S45.E45

David Pogue on high temperatures over the summer; Gov. Chris Christie, 2024 Republican presidential candidate; Jane Pauley interviews actor Michael J. Fox on his battle with Parkinson's disease; Martha Teichner visits a pig sanctuary; David Martin on a new mine-cleaning device; an 89-year-old gravedigger in Galveston, Indiana; Riva Yachts; charging a smartphone