A majority opinion in ACLU v. Schundler, 168 F.3d 92 (3d Cir. 1999), holding that the Establishment Clause was not violated by a city hall holiday display that contained a creche, a menorah, secular symbols of the season, and a banner proclaiming the city's dedication to diversity.
A majority opinion in Fatin v. INS, 12 F.3d 1233 (3d Cir. 1993), holding that an Iranian woman seeking asylum could establish that she had a well founded fear of persecution in Iran if she could show that compliance with that country's "gender specific laws and repressive social norms," such as the requirement that women wear a veil in public, would be deeply abhorrent to her. Judge Alito also held that she could establish eligibility for asylum by showing that she would be persecuted because of gender, belief in feminism, or membership in a feminist group.
A majority opinion in Saxe v. State College Area School District, 240 F.3d 200 (3d Cir. 2001), striking down as contrary to the First Amendment a public school district anti-harassment policy that extended to nonvulgar, non-school-sponsored speech that posed no realistic threat of substantial disruption of school work.
A majority opinion in Shore Regional High School Board of Education v. P.S., 381 F.3d 194 (3d Cir. 2004), holding that a school district did not provide a high school student with a free and appropriate public education, as required by the Individuals with Disabilities Education Act, when it failed to protect the student from bullying by fellow students who taunted the student based on his lack of athleticism and his perceived sexual orientation.
A majority opinion in Williams v. Price, 343 F.3d 223 (3d Cir. 2003), granting a writ of habeas corpus to an African-American state prisoner after state courts had refused to consider the testimony of a witness who stated that a juror had uttered derogatory remarks about African Americans during an encounter in the courthouse after the conclusion of the trial.
A dissenting opinion in Homar v. Gilbert, 89 F.3d 1009 (3d Cir. 1996) arguing that that a state university did not violate the procedural due process rights of a campus policeman when it suspended him without pay and without a prior hearing upon learning that he had been arrested and charged with drug offenses. The Supreme Court, which reversed and remanded the case on other grounds, agreed with Judge Alito's reasoning that no hearing was required prior to the suspension because the drug charges showed that the suspension was not baseless.
http://dailykos.com/comments/2005/10/31/63127/768/56#56