National Rifle Association President David Keene says the NRA has been discussing all of the the various options available to protect our children at a news conference, after the Newtown school shootings.
More top news
Nearly 1,000 properties have been left without power, and road users have been warned of potentially hazardous conditions.
It follows a surprise summit between South Korea's Moon Jae-in and the North's Kim Jong-un.
Organisers issued a warning about a “dangerous high strength or bad batch substance on site”.