 A 6-year-old in Maryland had been charged with threatening "to shoot a student" for pointing his finger and saying "pow".A Pennsylvania 5-year-old was said to be making a "terroristic threat" by talking about a Hello Kitty bubble-blowing gun.A Virginia 6-year-old had been suspended for pointing his finger at another student who pretended to shoot him with a bow and arrow after their class had studied Native American culture.