Question:
Renaissance are an English progressive rock band, best known for their 1978 UK top 10 hit "Northern Lights" and progressive rock classics like "Carpet of the Sun", "Mother Russia", and "Ashes Are Burning". They developed a unique sound, combining a female lead vocal with a fusion of classical, folk, rock, and jazz influences. Characteristic elements of the Renaissance sound are Annie Haslam's wide vocal range, prominent piano accompaniment, orchestral arrangements, vocal harmonies, acoustic guitar, bass guitar, synthesiser, and versatile drum work. The band created a significant following in the northeast United States in the 70s, and that region remains their strongest fan base.
As The Yardbirds were transforming into The New Yardbirds (with Jimmy Page) in 1968 and then Led Zeppelin, departing members Keith Relf and Jim McCarty formed an acoustic duo called Together. They released "Henry's Coming Home" b/w "Love Mum And Dad" as a single on Columbia Records in November 1968 without chart success. In January 1969, Relf and McCarty organised a new group devoted to experimentation with rock, folk, and classical forms. In his book Mountains come out of the sky: an illustrated history of prog rock, Will Romano quoted McCarty: This quintet -- Relf on guitar and vocals, McCarty on drums and vocals, plus bassist Louis Cennamo, pianist John Hawken, and Relf's sister Jane as an additional vocalist -- released a pair of albums on Elektra (US) and Island (UK-ILPS 9112), the first one, titled simply Renaissance, being produced by fellow ex-Yardbird Paul Samwell-Smith. The band had begun performing in May 1969, before recording had commenced for the debut LP, mostly in the UK, but with occasional forays abroad, including festivals in Belgium (Amougies, October 1969) and France (Operation 666 at the Olympia in January 1970, and Le Bourget in March 1970, both in Paris). In February 1970 they embarked on a North American tour, but that month-long trek proved only marginally successful. Because of their Yardbirds credentials, they found themselves paired with bands such as The Kinks and their new classically oriented direction did not always go down well because audiences were expecting rock/blues-based material. Beginning in the late spring of 1970 as touring began to grind on them, the original band gradually dissolved. Relf and McCarty decided to quit performing, and Cennamo joined Colosseum. Hawken organised a new line-up to fulfill contractual obligations to Island Records and complete the band's second album, Illusion which had been left unfinished.
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Did they ever tour?

Answer:
The band had begun performing in May 1969, before recording had commenced for the debut LP, mostly in the UK, but with occasional forays abroad,

Question:
Judith Miller (born January 2, 1948) is an American journalist and commentator. She worked in The New York Times' Washington bureau before joining Fox News. Accused by, among others, Edward Said, for a purported anti-Islamic bias in her writing, Miller became embroiled in controversy after her coverage of Iraq's Weapons of Mass Destruction (WMD) program both before and after the 2003 invasion was discovered to have been based on the inaccurate information in the intelligence investigations, particularly those stories that were based on sourcing from the now-disgraced Ahmed Chalabi. The New York Times later determined that a number of stories she had written for the paper were inaccurate.
On October 12, 2001, Miller opened an anthrax hoax letter mailed to her New York Times office. The 2001 anthrax attacks had begun occurring in the wake of the September 11 attacks in 2001, with anthrax-laced letters sent to ABC News, CBS News, NBC News, and the New York Post, all in New York City, as well as the National Enquirer in Boca Raton, Florida. Two additional letters (with a higher grade of anthrax) were sent on October 9, 2001, to Senators Tom Daschle and Patrick Leahy in Washington. Twenty-two people were infected; five died. In 2008, the government's investigation of these mailings focused on Bruce Ivins, who later committed suicide, with the investigation determining that Ivins acted alone. Miller was the only major U.S. media reporter, and The New York Times the only major U.S. media organization, to be victimized by a fake anthrax letter in the fall of 2001. Miller had reported extensively on the subject of biological threats and had co-authored, with Stephen Engelberg and William Broad, a book on bio-terrorism, Germs: Biological Weapons and America's Secret War which was published on October 2, 2001. Miller co-authored an article on Pentagon plans to develop a more potent version of weaponized anthrax, "U.S. Germ Warfare Research Pushes Treaty Limits", published in The New York Times on September 4, 2001, weeks before the first anthrax mailings. Miller also participated in a senior-level bio-terror attack simulation on Oklahoma City conducted on June 22 and June 23, 2001, called "Operation Dark Winter"; her role was media reporter/observer.
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What was the content of those letters?

Answer:
additional letters (with a higher grade of anthrax)