Here are the Google Goats hard at work...
The idea isn't entirely without precedent. During the World War I years First Lady Edith Wilson kept the White House lawn "mowed" by letting her family's sheep graze freely on the grounds. Maybe Obama could follow Google and the Wilsons' example and demonstrate some real environmentalism at 1600 Pennsylvania Avenue? :-)
Well anyway, I think it's a pretty neat story. Having grown up on a farm with a number of goats I can attest that they can eat anything, and will faithfully keep the grass and weeds at bay. Who knows: maybe with some good PR, goats and sheep can become the next "cool" pets to own.
(And as an added bonus, they can provide goats milk and lambchops!)