General Meetings, talks etc.

Plans are well advanced to build the Large Hadron Collider (LHC)
at CERN, in Geneva, Switzerland. This proton-proton colliding beam storage ring has an
energy of 7 TeV per beam. Hundreds of U.S. high-energy physicists will perform experiments
at this facility, and a consortium of U.S. DOE national laboratories is collaborating in
developing and building the challenging magnets for the experimental areas. A description
of the machine and our work on it is presented.

At the same time, many plans are being developed for high-energy
physics machines that will extend the anticipated results of the LHC. Such a large
undertaking will have to be built in the context of a world-wide collaboration of
scientists, industries and governments, and will have to take advantage of new
technologies and new ideas to reduce its cost to acceptable levels. Studies of Very Large
Hadron Colliders of about 50 TeV per beam, using superconducting magnets of high, moderate
and low field strength are presented. A new and speculative type of machine, a Muon
Collider could, in principle, be used to study the same phenomena as electron linear
colliders in a more compact design. This machine presents many challenges, including
high-field superconducting magnets that must operate in high radiation areas. Some of the
features and design issues of a Muon Collider is discussed.