1.   What is needed, he told the conference, is a single enforceable carry-on baggage rule that applies across the board and is easily understood.

2.   The rocks and fossils that researchers need in order to tell a coherent story have either washed away or been buried, presumably in places not yet discovered.

3.   What I needed, several fellow fast-trackers told me, was a firewall.

4.   What he needs, he tells her, is aspirin.

5.   What I needed, I told them, was an industrial-strength garden hose that would hold up under constant pressure.