The captain accompanied Maj Gen Ford in the area on the day of the march and said he heard between 15 to 20 high velocity shots and one burst of automatic fire as well as "two small explosions" which could have been nail or petrol bombs.

BBC: Heath unaware of risk to civilians

In 2005, the TSA changed its policies to allow passengers to carry on airplanes small scissors, knitting needles, tweezers, nail clippers and up to four books of matches.

NPR: TSA To Allow Small Knives, Bats, Clubs On Planes

Advocates from the National Healthy Nail Salon Alliance ( www.nailsalonalliance.org) and officials from the Environmental Protection Agency, National Institute for Occupational Safety and Health, the Occupational Safety and Health Administration, Food and Drug Administration and the Small Business Administration will discuss recommendations on how to improve working conditions for AAPI nail salon workers.

WHITEHOUSE: WHIAAPI Weekly Highlights: AAPI Heritage Month Edition

Small knives were banned along with a host of other undersized sharp objects, like nail clippers, screwdrivers and cosmetic scissors, after the September 11, 2001, terrorist attacks on the United States.

CNN: U.S. to keep restriction on small knives on planes for now