What is the significance of Rogers v. Richmond?

What is the significance of Rogers v. Richmond?
What is the significance of Townsend v. Sain?
When does the right to counsel kick in during interrogation?
Miranda v. Arizona established a “bright line” rule regarding warnings to suspects. State and give the reasons for the rule.
Identify three types of detentions that are not custodial.
Is there a constitutional right to the exclusionary rule? Explain your answer.
Identify the rationale for the attenuation, independent source, and inevitable discovery exceptions to the exclusionary rule.