Problem: Wwo sentences:
Two Americans killed in a recent ambush in Afghanistan were contract employees of the CIA , the agency said Tuesday .
Two CIA operatives have been killed in an ambush in Afghanistan , the CIA said yesterday .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
My view is these al-Qaeda terrorists - and I believe it was al-Qaeda - would prefer to have many such events . "
" My view is that these Al Qaeda terrorists -- and I believe it was Al Qaeda -- would prefer to have many such events . "
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
With the power back on , state workers headed back to their jobs Friday morning .
Pataki said if power was restored , state workers would be back on the job Friday morning .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
" If the voluntary reliability standards were complied with , we wouldn 't have had a problem . "
" If the voluntary reliability standards had been complied with , we wouldn 't have had a problem , " Mr. Dhaliwal said .
Do they have the same meaning?

Answer:
yes