1.   Drivers whose vehicles give off more poisonous chemicals than are allowed have ten days to clean up their act.

2.   And there are other components inside that give off heat.

3.   But the strings, breathing easily together, give off a soft shine that is quite remarkable.

4.   Jim Coles, U.S. military spokesman in Seoul, said the bullets are not an environmental or health threat and give off less radiation than a computer screen.