investigates why some researchers believe this drug could become the pharmaceutical of the future - enhancing brain power, expanding creativity and even curing mental illness. LSD's inventor Albert Hofman called it "medicine for the soul." The Beatles wrote songs about it. Secret military mind control experiments sought to exploit its hallucinogenic powers. Outlawed in 1966, LSD became a street drug and developed a reputation as the dangerous toy of the counterculture, capable of inspiring either moments of genius, or a descent into madness. Now science is taking a fresh look at LSD including the first human trials in over 35 years, researchers are finding that this trippy drug could become the pharmaceutical of the future. Inside: LSD reveals if this controversial drug can enhance brainpower, expand our creativity and even cure disease.