While fusion is a nuclear process, the products of the fusion reaction (helium and a neutron) are not radioactive, and with proper design a fusion power plant would be passively safe, and would produce no long-lived radioactive waste.
In the United States and formerly Canada a ton is defined to be 2,000 pounds (907 kg). Where confusion is possible, the 2240 lb ton is called  long ton  and the 2000 lb ton  short ton ; the tonne is distinguished by its spelling, but usually pronounced the same as ton, hence the US term metric ton.here confusion is possible, the 2240 lb ton is called  long ton  and the 2000 lb ton  short ton ; the tonne is distinguished by its spelling, but usually pronounced the same as ton, hence the US term metric ton.
Full Answer. In general, 1 ton is said to equal 2,000 pounds, but some countries outside the United States consider 1 ton to equal 2,240 pounds. The 2,000-pound ton is sometimes referred to as a short ton, while the 2,240-pound ton is called the long ton. In comparison, most cars weigh approximately 1/2 ton, and a fully grown elephant can top 7 tons.