NEARLY 85,000 people have signed an online petition calling for part of the White House lawn to be turned into a vegetable patch, the plan's germinator said today. "The idea is for the Obama family to plant an organic vegetable garden on part of the White House lawn, with the cultivated vegies going to the White House kitchen and any overflow going to feed those in need," Roger Doiron, said, adding the idea had sprouted last year. If the Obamas were to plant a garden on the White House grounds, it would have the "inspirational potential" to spawn millions of...