Particle Physics and Astrophysics -- A whitepaper in response to a call to the Astronomy and Astrophysics Community from the Committee on Astro2010 for State of the Profession Position Papers

We discuss some of the key science questions that are bringing particle physicists and astrophysicists together, and comment on some of the cultural and funding issues that have arisen as these two communities become increasingly intertwined.
Comment: A state of the profession position paper submitted to the Astronomy Decadal Survey Astro2010