A student who survived the Texas school shooting by covering herself in a classmate's blood has told the US Congress of the moment her teacher was killed during the massacre. This, as the US House of Representatives voted largely along party lines to raise the minimum age to buy semi-automatic rifles from 18 to 21 and ban high-capacity ammunition magazines. Will the proposal pass the divided US Senate? NDTV's Parmeshwar Bawa breaks down the details.
