question
Go after and cover:
1.- Liza is a journalist who goes after stories on technology for Business 2000 magazine.
<em>if you wanted to use 'go' it would be more proper to say...Lisa is a journalist who will go after..</em>
2.-It took a lot of courage for those reporters to cover the story about drug smugglers.
Correct, also you could put 'the' before drug smugglers
Ex: It took a lot of courage for those reporters to cover the story about the drug smugglers.