Problem: Charles Lewis Haley (born January 6, 1964) is a former American football linebacker and defensive end who played in the National Football League (NFL) for the San Francisco 49ers (1986-1991, 1998-1999) and the Dallas Cowboys (1992-1996). A versatile defensive player, Haley began his career as a specialty outside linebacker, eventually progressing to pass-rusher and finally full-fledged defensive end. He is the first five-time Super Bowl champion, and is one of only two such players, the other being Tom Brady. He won two Super Bowls with the 49ers (XXIII, XXIV) and three with the Cowboys (XXVII, XXVIII, XXX); he was a starter in all five championship games.

In 1992, Haley was moved to right defensive end in the Dallas Cowboys 4-3 defense, made 39 tackles, 6 sacks, and 42 quarterback pressures (led the team), and helped the team improve from 17th in total defense in 1991 to first. Haley received the UPI NFC Defensive Player of the Year Award and was a consensus All-Pro once again. He is often mentioned as the final piece that helped propel the Cowboys into a Super Bowl contender. In 1993, Haley made headlines after smashing his helmet through a wall in the locker room following a home loss to the Buffalo Bills, showing his displeasure with the team's inability to sign holdout running back Emmitt Smith, which contributed to an 0-2 start and put the season in jeopardy. The Cowboys relented and reached an agreement with Smith the following week, getting them back on track and making them the first team to win a Super Bowl after starting a season 0-2. He registered 41 tackles, 4 sacks, 2 passes defensed, and 3 forced fumbles, but his recurring back problems began to require a series of surgeries. In 1994, Haley recovered from off-season surgery (lumbar microdiscectomy) to post 68 tackles, 12.5 sacks, and 52 quarterback pressures. He immediately announced his retirement after losing 28-38 to the 49ers in the NFC Championship game, but decided to return after being offered a new contract. In 1995, Haley posted 10.5 sacks, 33 quarterback pressures, and 35 tackles in the first 10 games, until suffering a ruptured disk against the Washington Redskins, which derailed his season. He started in Super Bowl XXX six weeks after having back surgery, making one sack, 3 quarterback pressures and 5 tackles. The next year, with the team trying to limit him to 30 plays per game, he appeared in the first three contests, in week 9 and 10, before being deactivated with a back injury. He retired after the season, because of his back injuries and his youngest daughter Brianna having been diagnosed with leukemia.

did he leave the cowboys

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Problem: Leonard Bernstein ( BURN-styne; August 25, 1918 - October 14, 1990) was an American composer, conductor, author, music lecturer, and pianist. He was among the first conductors born and educated in the US to receive worldwide acclaim. According to music critic Donal Henahan, he was "one of the most prodigiously talented and successful musicians in American history."

While Bernstein was very well known for his music compositions and conducting, he was also known for his outspoken political views and his strong desire to further social change. His first aspirations for social change were made apparent in his producing (as a student) a recently banned opera, The Cradle Will Rock, by Marc Blitzstein, about the disparity between the working and upper class. His first opera, Trouble in Tahiti, was dedicated to Blitzstein and has a strong social theme, criticizing American civilization and suburban upper-class life in particular. As he went on in his career Bernstein would go on to fight for everything from the influences of "American Music" to the disarming of western nuclear weapons. Like many of his friends and colleagues, Bernstein had been involved in various left wing causes and organizations since the 1940s. He was blacklisted by the US State Department and CBS in the early 1950s, but unlike others his career was not greatly affected, and he was never required to testify before the House Un-American Activities Committee. His political life received substantial press coverage though in 1970, due to a gathering hosted at his Manhattan apartment on January 14, 1970. Bernstein and his wife held the event seeking to raise awareness and money for the defense of several members of the Black Panther Party against a variety of charges. The New York Times initially covered the gathering as a lifestyle item, but later posted an editorial harshly unfavorable to Bernstein following generally negative reaction to the widely publicized story. This reaction culminated in June 1970 with the appearance of "Radical Chic: That Party at Lenny's", an essay by satirist Tom Wolfe featured on the cover of the magazine New York. The article contrasted the Bernsteins' comfortable lifestyle in one of the world's most expensive neighborhoods with the anti-establishment politics of the Black Panthers. It led to the popularization of "radical chic" as a critical term. Both Bernstein and his wife Felicia responded to the criticism, arguing that they were motivated not by a shallow desire to express fashionable sympathy but by their concern for civil liberties. Bernstein was named in the book Red Channels: The Report of Communist Influence in Radio and Television (1950) as a Communist along with Aaron Copland, Lena Horne, Pete Seeger, Artie Shaw and other prominent figures of the performing arts. Red Channels was issued by the right-wing journal Counterattack and was edited by Vincent Hartnett, who was later found to have libeled and defamed the noted radio personality John Henry Faulk.

What was Bernstein's involvement with social activism?

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he was also known for his outspoken political views and his strong desire to further social change.