The conceptual themes, such as fracture, become critical tools throughout the book.

Scientific drilling is a critical tool in understanding of Earth processes and structure.

Technology is a critical tool in Opportunity International's fight against poverty.

Although the program is over 36 years old, email and the internet are critical tools for students.

Competition is a critical tool for achieving the best return on the government s investment.

Through this law, foreign women who marry American men will be given critical tools to protect themselves and their children from domestic violence.

Information is a critical tool for patient participation in the healing process.

But the power to probe is a critical tool for public accountability.

Feminism, therefore, is a critical tool rather than a social movement.

"Such cooperation is a critical tool for our war on terrorism."