Take a look at this quote from Johnson’s pardon.
What was the only condition for Southerners to meet in order to receive a pardon?

dylan has written many enduring songs and he has received several awards for his musical achievement;  

any written work with artistic value can be considered literature; especially if such work is publicly recognized, and has had importance and endurance among people; whether is poetry or fiction or drama or even criticism, since it's the transcendence and representation of a culture, language or people in a period of time to more people, using letters (words), regardless the subject.

the nobel prize in literature is given to authors from any country based on a body of work as a whole that inspires and nurses the life of humanity.  

and the work of bob dylan matches that description, therefore is well deserved since he'd created new poetic expressions within the american song tradition, that has inspired and influenced the lives of many people, not only withing the united stated but worldwide as well.

the answer is moving from place to place

board of education v. earls, 536 u.s. 822 (2002), was a united states supreme court case in which the court upheld the constitutionality of mandatory drug testing by public schools of students participating in extracurricular activities. the legal challenge to the practice was brought by two students, lindsay earls and daniel james, and their families against the school board of tecumseh, oklahoma, alleging that their policy requiring students to consent to random urinalysis testing for drug use violated the fourth amendment to the united states constitution.

the student activities drug testing policy adopted by the tecumseh, oklahoma school district requires all middle and high school students to consent to urinalysis testing for drugs in order to participate in any extracurricular activity. two tecumseh high school students and their parents brought suit, alleging that the policy violates the fourth amendment. the district court granted the school district summary judgment. in reversing, the court of appeals held that the policy violated the fourth amendment. the appellate court concluded that before imposing a suspicionless drug-testing program a school should demonstrate some identifiable drug abuse problem among a sufficient number of those tested, such that testing that group will actually redress its drug problem, which the school district failed to demonstrate.

in a majority opinion delivered by justice clarence thomas, the court held that students in extracurricular activities had a diminished expectation of privacy, and that the policy furthered an important interest of the school in preventing drug use among students. this rationale was based on the precedent vernonia school district 47j v. acton (1995), which allowed drug testing for athletes. justice stephen breyer filed an opinion concurring in the court's judgment.