NEW YORK: The United Nations (UN) launched a 100-day campaign on June 13 that will use Twitter to influence legislators and raise awareness about the dangers of nuclear weapons. 

The “WMD-We Must Disarm” campaign plans to Tweet a daily message, providing 100 reasons during the 100 days why policymakers and leaders should push for nuclear disarmament, said Jim Landale, a public information officer for the UN.

The Tweets are being reposted to the campaign's Facebook and ...