Companies vie for Olympic attention  A passengers passes a sign
advertising Adidas, one of the Beijing Olympics major sponsors,
in a subway station in Beijing.   Kai Ryssdal: There's going to
be more on the line during the Olympics later this summer than
just who's gonna win the most medals. At $20 billion and
counting, the facelift Beijing's giving itself to get ready for
the Games might the most expensive ever for a host country.
Standard and Poors said today it thinks all that spending will
be a net plus for the Chinese economy.  For Olympic sponsors,
though, the bottom line's not so clear. Companies pay handsomely
for the right to use the rings, but unauthorized copycats have
made for a marketing muddle as Marketplace's Scott Tong reports
now from Beijing.  Scott Tong: Let's play Name that Olympics
Sponsor:  Is it Nike, whose billboards in Beijing show Chinese
hurdler Liu Xiang, crouched at the starting line?  Is it Adidas,
with its own crouching athletes, and posters that say
"Impossible is Nothing?"  Or