Misc: What one word may be added to news, carbon & wall?

Questions

70s: Born "No Name Maddox", he committed the most sensational crime of the 70's?

70s: Famous mother who won the nobel prize in 1979?

70s: He was court-martialed in 1971 for atrocities in Southeast Asia?

which made them safe enough for general use?

arch, which is essentially a central voussoir?