Two lawmakers are asking the Internet standards group World Wide Web Consortium to specify that online companies should stop gathering information from users with a do-not-track header activated on their browsers. "We agree with those worldwide who have repeatedly insisted that users should have control over both the collection and the use of their personal data," Reps. Ed Markey (D-Mass.) and Joe Barton (R-Texas), say in a letter sent on Tuesday to the W3C's tracking protection working group. "In our view, Do Not Track should encompass non-targeted advertising along with not accumulating, using, sharing, or selling the consumer's personal data." The lawmakers' letter comes one day before the World Wide Web Consortium's…