Use "paper tiger" in a sentence

1. 4 Mobile Payments: Killer App or Paper Tiger?

2. 17 The Soviet Union was suddenly revealed as a paper tiger.

3. Without legislative measures in the field of warning labels and advertising bans, the alcohol strategy will be a paper tiger.

4. 19 The managing director has the nominal power but he is a paper tiger, and it is his assistant who actually runs the company.