Exclusive to Yahoo! News - In the wake of Dr. Laura Schlessinger’s decision to end her radio show after repeatedly using a racial epithet, she’s spent quite a bit of time talking about freedom of speech. “I want to regain my First Amendment rights,” Schlessinger said, contending that special-interest groups were limiting her freedom to express herself.Sarah Palin jumped in and tweeted, “Dr.Laura: don't retreat ... reload! (Steps aside bc her 1st Amend.rights ceased 2exist thx 2activists trying 2silence"isn't American,not fair")"That was soon followed by a second tweet: “Dr.Laura=even more powerful & effective w/out the shackles,so watch out Constitutional obstructionists. And b thankful 4 her voice, America!)"Have Dr. Laura’s rights been trampled? Are her critics undercutting the Constitution?