Question: Today Wikipedia, the free encyclopedia that anyone with access to the Internet can edit, was the victim of an onslaught of practical jokes, as April Fool's Day kicked in various timezones around the world, at least those parts which follow the Gregorian calendar. It is believed that Wikipedia contributors were kept busy tidying up and removing prank articles and changes made by other Wikipedia contributors, and were expecting to be cleaning up the aftermath for days afterwards.

Readers of online encyclopedias can edit the contents.
Answer: yes
Question: Domestic fire incidents have an important impact on population health by contributing to early death, serious and often disfiguring injuries, and ongoing disability. Fire-related injury is a leading cause of unintentional injury in the home in all age groups.

Domestic fires are a major cause of unintentional injury in the home.
Answer: yes
Question: After the SkyWest airliner touched down, the Airport Movement Area Safety System (AMASS) alerted and the air traffic controller transmitted "Hold, Hold, Hold" to the SkyWest flight crew in an attempt to stop the aircraft short of runway 1L. The SkyWest crew applied maximum braking that resulted in the airplane stopping in the middle of runway 1L. As this was occurring, the captain of Republic Airlines flight 4912 took control of the aircraft from the first officer, realized the aircraft was traveling too fast to stop, and initiated an immediate takeoff. According to the crew of SkyWest 5741, the Republic Airlines aircraft overflew theirs by 30 to 50 feet. The Federal Aviation Administration has categorized the incident as an operational error.

NTSB is responsible for investigating transportation accidents in the United States.
Answer:
no