Senator Dick Durbin says the debate over Stand Your Ground laws raises fundamental questions about self-defense in America.
"It is clearly time for Stand Your Ground laws to be carefully reviewed, and reconsidered."
Durbin's chairing a Senate committee looking into the public safety implications of the laws, and says they go too far in encouraging deadly confrontations.
"They're resulting in unnecessary tragegdies, and diminishing accountability under our justice system."
The committee heard from Sybrina Fulton, the mother of Trayvon Martin, who was shot and killed by florida neighborhood watchman George Zimmerman.
"These laws don't work. The person that shot and killed my son is walking the streets today."