"In the first of several rulings on the merits, the Court split 5-4 in deciding that a federal agency that is required by law to take a specific action does not have to follow the conflicting mandate of the Endangered Species Act. The decision, written by Justice Samuel A. Alito, Jr., came in National Association of Home Builders v. Defenders of Wildlife (06-340) and a companion case.
In the second decision of the day, also written by Alito and again dividing the Court 5-4, the Justices ruled that taxpayers do not have standing to sue to challenge the White House program on federal aid to faith-based organizations. The Court did not overrule Flast v. Cohen, also two Justices in the majority urged it to do so.
The third decision, written by Justice David H. Souter, found over two Justices' partial dissents that government employees carrying out their official duties and not for personal benefit are not subjec to to damage claims against them personally based on a claim that they violated the RICO anti-racketeering law or private property rights.
The fourth ruling, written by Chief Justice John G. Roberts, Jr., over three full dissents and one partial dissent, declared that public school officials do not violate a student's free speech rights by punishing the student for words or actions that promote a drug message."