Learn Turkish: Cesur muhabir, sürgün pahasına gerçekleri asla gizlemeyecek. - The brave reporter will never hide the facts at the cost of exile.

pahasına means 'at the cost of' or 'at the risk of.' It is placed immediately after the risk being taken. Because sürgün (exile) is a noun, pahasına simply follows it. If the risk were an action, you would use an infinitive verb ending in -mak or -mek before it.

Does sürgün need any suffixes to connect to pahasına?

No. Even though pahasına literally means 'to its price' (from paha + possessive -sı + dative -a), it functions as a fixed postposition. You just place the bare noun sürgün right in front of it, rather than using a genitive suffix like you would in a standard noun compound.

Why is the word for 'facts' written as gerçekleri?

It is made up of gerçek (fact/truth), the plural suffix -ler, and the specific accusative case suffix -i. The accusative case is required here because the facts are the specific direct object receiving the action of the verb gizlemeyecek.

Why does the verb gizlemeyecek have a negative suffix when asla already means 'never'?

In Turkish, negative adverbs like asla (never) require the verb to also be in the negative form. The negative suffix -me in gizlemeyecek (will not hide) works together with asla to complete the meaning 'will never hide.' This is standard Turkish grammar, not an incorrect double negative.