Farmer Tobias Haack drives a tractor over 100,00 heads of romaine, iceberg and ten other types of lettuce in order to mulch them back into the ground at one of his fields on June 4, 2011 near Hamburg, Germany. Vegetable farmers in northern Germany were facing a crisis as public reaction to the current enterohemorrhagic E. coli, also known as the EHEC bacteria, outbreak had brought vegetable sales to a near halt.
