A new law gives companies a simple way to raise the bar for lawsuits. A phosphate mining company lobbied for it.By Lisa Spear’What happens when you get exposure to radioactivity?’ Andy Mele remembers the man asking earnestly as he pulled up his shirt. The man, who looked like he couldn’t be older than 35, exposed his swollen belly to the Florida sun, covered in bulges protruding from under his skin, Mele said. He then parted his hair with his fingers to show Mele the lumps growing on his scalp.