Many of the charges being leveled against Lance Armstrong have been around for years. Have they ever been proven or disproven?
An injured reader wants to know if it is "worth all the trouble to file a lawsuit."
A reader wants to know about his options when a private land owner shut off access to a long-used trail.
The Explainer follows up on a few continuing stories and answers a few questions from the inbox.
Q.Dear Explainer, Despite disagreeing on your final conclusion, your coverage of the hit-and-run case in Colorado has been thorough and I
The Explainer reflects on this week's hearing in Colorado in which a court accepted a plea deal for a wealthy defendant and explains why he
An update on the Vail hit-and-run case ... and a look at the defendant's second failure to report.
A reader wants to know what an athletes options might be when that dreaded letter from USADA arrives at your door.
What do a couple of suspended masters racers have to do with the current Federal investigation of doping in cycling? Where are the big
Readers offer questions about testing in other sports, methods used in labs and why U.S. investigators are in France.