This is a topic I have speculated on for a long time. I really think U2 has done more drugs than they let on. Lemme cite some reasons:
1. Flanagan's book tells a story of Bono smoking weed in 1976 or so, during high school.
2. The UF documentary has a snippet of Adam couched out, with a sign saying something like "Do not disturb for 20 minutes for 4:20" 4:20 means a weed break.
3. Adam had 18 grams of pot. That's a lot. Just WHO do you think he bought all that for?
4. Edge definitely did mushrooms. In fact, a lot of his guitar effects from that era are VERY trippy. They make me wonder what state he was in when he came up with them. Listen to the guitar after the solo in UTEOTW, or the Fly solo itself.
5. I'm almost certain Bono is on cocaine when he's MacPhisto at Sydney. He keeps sniffing and rubbing his nose (and catching himself WANTING to rub his nose). Also, his eyes are weird.
6. Circumstantial quotes that don't come down clearly one way or the other. The shades, the avoidance of the questions...
7. They transition from a heroin song into WTSHNN very often. Infact, in Bad he now repeats "isolation, revelation" over and over to describe the experience. And at Sydney, he "shoots up" in RTSS, then repeats "Hallelujah," then goes into the heavenly glory of WTSHNN. Hmm...
8. The discoteque video. Case closed.
What do you all think of this evidence?