Godeps/_workspace/src/gopkg.in/mgo.v2/session.go
func (s *Session) New() *Session {
	s.m.Lock()
	scopy := copySession(s, false)
	s.m.Unlock()
	scopy.Refresh()
	return scopy
}
func (s *Session) New() *Session {
	s.m.Lock()
	scopy := copySession(s, false)
	s.m.Unlock()
	scopy.Refresh()
	return scopy
}
// New creates a new session with the same parameters as the original
// session, including consistency, batch size, prefetching, safety mode,
// etc. The returned session will use sockets from the pool, so there's
// a chance that writes just performed in another session may not yet
// be visible.
//
// Login information from the original session will not be copied over
// into the new session unless it was provided through the initial URL
// for the Dial function.
//
// See the Copy and Clone methods.
//